Drone Accidents & Case Studies Archives - Blakistons

A Constructive Outcome for Safer Skies: What the Client’s Case Means for UK Drone Pilots

admin.richard — Thu, 06 Nov 2025 17:53:49 +0000

By Richard Ryan, barrister and drone lawyer

Constructive outcome, practical lessons. A technical proximity breach was confirmed, a more serious allegation was dismissed, and there are clear takeaways that raise standards on evidence, cooperation and public safety.

Outcome at a glance

Count 1 (conviction): Operating an unmanned aircraft close to the site of an ongoing emergency response — Air Navigation Order 2016 Articles 265B(3), 265B(5)(j) and 265F(3)(c) (reflecting UAS.OPEN.060(3)).
Count 2 (dismissed): Obstructing or hindering emergency workers — Emergency Workers (Obstruction) Act 2006, sections 1 and 4 — no case to answer.
Sentence: £300 (reduced from £2,500). Deprivation order refused — the client’s equipment will be returned.

Competence, cooperation and public interest flying

The client is an experienced operator with hundreds of hours and thousands of flights, combining sound aviation literacy with routine work around public interest incidents. On the day in question, the client used aircraft tracking tools and air band monitoring, maintained a conservative standoff where no formal cordon existed, and landed promptly when requested by police. This was a measured and safety first response in a dynamic setting.

Lesson 1: Telemetry clarity

When presenting flight data, clarity matters. Plot the flight path with a thin, precise line so the base map remains legible, including fences, road edges, cordons and measured standoffs. A thick line can obscure the very features that prove separation.

Keep a clean thin line map and a forensic overlay with timestamps for take off, orbit points, return to home and landing, plus measured distances to fixed features.
Use a thin line that clearly shows accurate telemetry when placed on a map, not a thick line that obscures part of the map.

Lesson 2: Plan for seizure and understand where DJI DAT lives

High fidelity DJI DAT logs are stored on the aircraft and typically require connecting the drone to a computer to extract. If a drone is seized by police, immediate access to those DAT files is difficult.

Build redundancy: back up app and controller logs after each flight, use screen recordings of the flight user interface, and capture independent stills or video.
For sensitive assignments, consider periodic DAT offloads in advance.

Five straightforward commitments

Thin line telemetry as the default for mapping outputs.
Evidence resilience: dual path logging (logs plus screen capture) and periodic DAT offloads.
Proportionate communications near emergency activity where appropriate.
A simple one page ops note on every job covering airspace, standoffs and abort triggers.
Calm, courteous engagement with officers, with a record of powers used and a property schedule if equipment is seized.

Technical reference: cross motorway separation

To contextualise the judge’s description (opposite side of a six lane motorway plus hard shoulder plus verge), the following uses standard UK dimensions.

Assumptions from UK highway standards

Lane width (motorways): 3.65 m per lane (DMRB CD 127). [1]
Hard shoulder width: 3.3 m (National Highways). [2]
Central reservation (median): assume about 3.0 m (DMRB derived guidance). [3]
Verge: varies by site; on trunk roads, about 3.0 m is common. Use 2.0 to 3.0 m to bracket reality. [4]

Baseline components

Six lanes = 6 x 3.65 = 21.90 m. [1]
Two hard shoulders = 6.60 m. [2]
Central reservation (median) about 3.00 m. [3]
Verge per side about 2.0 to 3.0 m. [4]

Real world lateral separation (verge to verge)

Distance = 6 lanes + 2 x hard shoulder + 2 x verge + median

With 2.0 m verges (conservative): 21.90 + 6.60 + 4.00 + 3.00 = 35.50 m
With 3.0 m verges (typical): 21.90 + 6.60 + 6.00 + 3.00 = 37.50 m

Figure to use: about 37.5 m horizontal separation verge to verge (typical). Lower bound: about 35.5 m if verges are unusually narrow.

Lean reading (narrow phrasing)

Six lanes plus one hard shoulder plus one verge (omitting the median and the opposite side shoulder and verge):

21.90 + 3.30 + (2.0 to 3.0) = 27.2 to 28.2 m

This underestimates the physical cross section that most operators and engineers would use.

Add altitude for slant distance

If height is h, the slant range is sqrt(lateral^2 + h^2).

With 37.5 m lateral: 48.0 m at 30 m AGL, 70.8 m at 60 m, 125.7 m at 120 m.
With 35.5 m lateral: 46.5 m at 30 m, 69.2 m at 60 m, 124.2 m at 120 m.

Practical effect: even before adding any field offset inside the field beyond the verge, cross motorway separation is around 36 to 38 m. Any field offset adds to that figure. Slant range increases further with altitude.

Standards: DMRB CD 127, National Highways, TII DN GEO 03036, Transport Scotland.

Bottom line

This is a constructive outcome. The most serious allegation fell away, the fine is modest, and the client retains their equipment. More importantly, the experience is being used to lead on best practice: clearer telemetry, stronger data resilience and exemplary on scene conduct, supporting emergency services, informing the public and keeping UK skies safe.

About the author

Richard Ryan is a Barrister (Direct Access), Mediator and Chartered Arbitrator based in the UK, specialising in drone and counter-drone law, aviation regulation, and complex commercial disputes. He advises operators, insurers and public bodies on SORA/AAE approvals, BVLOS programmes, privacy/data governance, and risk allocation across the drone ecosystem.

This post is for general information only and is not legal advice.

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When “Just a Minute” Becomes BVLOS: Legal Lessons for Drone Operators from CHIRP’s September 2025 Reports

admin.richard — Mon, 27 Oct 2025 19:14:43 +0000

By Richard Ryan, Barrister & Drone Lawyer – practical takeaways, not legal advice for your specific situation.

Why this matters

CHIRP’s Drone/UAS FEEDBACK Edition 14 (September 2025) curates incidents that look ordinary until you view them through a law-and-liability lens:
three model-flying events that drifted into unintentional BVLOS, a Mini 2 injury at a carnival, a controller or app freeze mid-mission,
a fatigue-tinged flight that autolanded at 20 percent battery into a tree, and an RTH climb toward powerlines. Each contains avoidable legal exposure
that you can mitigate with better planning, clear roles, and a few settings changes.

The incidents, in plain English – and what the law expects

1) Unintentional BVLOS x3 (BMFA community)

What happened: One EDF jet lost power from a poor solder joint after a user modification; two other flights went BVLOS when sea fog or thermal lift arrived faster than forecast.
Legal frame (UK): The Drone and Model Aircraft Code requires direct VLOS and the ability to determine orientation at all times. If you cannot do that, the flight is non-compliant.
Practical fix: Treat post-purchase alterations as airworthiness-significant and inspect them before each flight. Use BMFA’s SWEETS pre-flight. Adopt a simple “radial scan” habit: eyes out (aircraft and airspace) then quick glance down (controller or map) then eyes out again.

2) Nottingham Carnival injury (Mini 2)

What happened: A minor pressed “land” while the supervising adult was distracted; the drone struck another child who was sitting on someone’s shoulders. Police confiscated the aircraft. No Operator ID was displayed and it was flown over a crowd.
Legal frame (UK): Never fly over crowds or assemblies of people. Label the aircraft with a visible Operator ID. Where injury occurs, expect scrutiny under general endangerment provisions.
Practical fix: Establish a safe TOLA (take-off and landing area) away from the crowd. Use aviation-style handover phraseology: “You have control” / “I have control”. Keep controller audio alerts audible. Supervision of minors must be active and informed by the Code.

3) “My app froze” (Mavic 4 Pro + RC2; 87-waypoint mission)

What happened: Switching to Map View mid-mission froze the Fly app. The pilot used the hardware RTH button to recover the aircraft. Possible overload from running a large waypoint mission while screen-recording.
Legal frame: You remain responsible for safe operation even when the UI hiccups. The defensible question is whether your procedures anticipated foreseeable failures, such as hardware RTH muscle memory, function checks, and reboot-on-the-ground policies.
Practical fix: For long waypoint jobs, test the profile without screen-recording first. Pre-brief the hardware RTH action. Use a visual observer if you will be heads-down.

4) Fatigue and stress (power-line inspection)

What happened: The pilot became disoriented, lost VLOS about 1,700 ft from home, hit 20 percent battery, and, unaware that “land at 20 percent” was set, descended into a tree despite pressing RTH.
Practical fix: Know and brief your low-battery action (RTH vs auto-land vs hover) in the Operations Manual. Use two-crew where terrain or workload increases disorientation risk. Remember UK requirements to maintain VLOS and orientation at all times.

5) RTH vs powerlines (mapping mission)

What happened: An automated flight went off-nominal. On RTH, the aircraft likely contacted an obstacle while climbing. CHIRP notes the perception trap of judging wire clearance at range and reminds that wires sag mid-span.
Practical fix: Set RTH altitude locally before each flight, above towers, tree lines, cranes, and powerlines. Do not rely on obstacle avoidance to detect thin wires. Pre-flight, measure line heights relative to the home point and add margin for sag and wind.

Five legal pillars these cases keep hitting

VLOS is non-negotiable. Keep the aircraft in direct sight and be able to tell its orientation, with a full view of surrounding airspace.
Crowds are out of bounds. “Assemblies of people” are defined by the inability to disperse quickly, not by a headcount.
Operator ID labelling is strict. Visible, legible, on the airframe. Sub-250 g camera drones typically still require an Operator ID.
Endangerment provisions are broad. If someone is endangered or injured, regulators may consider reckless or negligent operation.
Automation is not absolution. You own the outcomes of RTH, low-battery actions, waypointing, and controller limits.

Turn the lessons into a defensible playbook

A. Pre-flight and design for failure

Modified anything? Treat user soldering, adapters, and third-party leads as risk-relevant. Inspect that joint every flight until replaced with a proven assembly. Log the check.
Weather is slippery. Do not rely on one app. Triangulate forecasts. Identify abort gates if visibility closes in (fog, showers, glare). Use SWEETS at the field.
Controller workload. For heavy waypoint missions, disable screen-recording unless proven stable. Rehearse hardware RTH and app-independent control.

B. RTH and battery settings you can defend

Set RTH altitude locally, every time. Clear known obstacles and powerlines. Consider Advanced RTH where available.
Know low-battery behavior. Document thresholds in the Operations Manual, brief them to the crew, and confirm on the controller before take-off.

C. People, roles, and sterile cockpit

Observer next to you for heads-down tasks, with real-time verbal coordination.
Minors at the sticks? Only with active oversight, formal handovers, and never within or over a crowd.
Events and assemblies. Create buffer zones and safe TOLA sites. If a client insists on crowd-proximate shots, the safest and most defensible answer is often no without appropriate authorization and controls.

D. Evidence and reporting (preserve the facts)

After any occurrence, preserve flight logs, app caches, screen recordings, controller settings, and note battery and RTH configuration.
Consider confidential safety reporting to CHIRP in the UK (and NASA ASRS in the U.S.) to help the community learn without blame.

Bottom line

The risk here is ordinary: a conversation at the wrong moment, fog rolling in, a buried setting, an RTH altitude that did not clear wires,
or a controller pushed too hard. The Code’s core duties – VLOS, no crowds, proper ID labelling,
know your automation, and keep records – are your best legal shield when something goes wrong.

BMFA SWEETS: a quick pre-flight check

S — Sun: position now and later; glare; keep VLOS; avoid flying through the sun.
W — Wind: direction/strength/turbulence; safe areas for forced or dead-stick landings.
E — Environment: visibility (rain, mist, fog, fading light), people nearby, RF risks, space to fly a full circuit.
E — Emergencies: plan what you will do if there is a malfunction or airspace incursion; confirm failsafes.
T — Transmitter control: local Tx control and frequencies; correct model; trims/rates; Tx power/voltage.
S — Site rules: club rules, local byelaws, no-fly zones, height and airspace limits.

Note: some older guides use “Eventualities” for the first E. Meaning is the same: think ahead about what could happen and how you will handle it.

This article is general information, not legal advice. If an incident has occurred, speak to counsel at Blakiston’s Chambers before making statements to third parties and preserve all electronic evidence immediately.

Credit and resources

Based on incidents and analysis in CHIRP Drone/UAS FEEDBACK Edition 14 (September 2025).
BMFA pre-flight mnemonic SWEETS: handbook.bmfa.uk/13-general-model-safety
UK Drone and Model Aircraft Code: register-drones.caa.co.uk
Report a safety concern to CHIRP (confidential): chirp.co.uk/aviation/submit-a-report

The post When “Just a Minute” Becomes BVLOS: Legal Lessons for Drone Operators from CHIRP’s September 2025 Reports appeared first on Blakistons.

Airprox 2024294 – What Actually Happened at RAF Lakenheath?

admin.richard — Fri, 27 Jun 2025 13:41:37 +0000

Airprox 2024294 – What Actually Happened?

On the night of 22 November 2024 at 21:51 UTC, a National Police Air Service (NPAS) EC135 helicopter operating near RAF Lakenheath reported multiple “drones” manoeuvring around it. In reality, the objects were USAF F15 fighters engaged in authorised night training in Class G airspace (surface–FL150), coordinated by Lakenheath Approach (“Overlord”).

Summary of Key Facts:

Closest Point of Approach (CPA): 1 NM horizontal / 1900 ft vertical separation (recorded).
ATC Services:
- EC135 – Basic Service (no traffic information guaranteed).
- F-15s – Traffic Service (received information about the EC135).
Misidentification Factors:
- EC135’s TCAS did not display the F-15s.
- F-15 lighting did not resemble standard civil aircraft lighting.
- The crew believed the lights were drones due to their apparent behaviour and lack of TCAS confirmation.

The UK Airprox Board (UKAB) concluded that there was no risk of collision (Risk Category E) and attributed the report to misidentification and situational awareness breakdown rather than unsafe flying.

Why This Matters to Drone Operators

1. Misidentification Risk

Even experienced police aircrew using EO/IR cameras mistook military jets for drones. This shows how easily drone operators can be blamed for aerial events they weren’t involved in.

2. Electronic Conspicuity Limitations

The EC135’s TCAS did not detect the F-15s despite them squawking Modes A and C. This highlights the ongoing limitations of EC systems in complex or mixed-use airspace, particularly at night.

3. ATC Service Levels – Know the Difference

Under a Basic Service, ATC is not required to provide traffic information. Drone operators should consider requesting a Traffic Service or Deconfliction Service for BVLOS, urban, or sensitive operations.

Public Perception: A Persistent Challenge

“Drone blame” is the default: Unidentified lights in the sky are often assumed to be drones, fuelling public concern and regulatory overreaction.
Poor understanding of airspace rules: The public often assumes ATC sees and controls everything — which is untrue in Class G.
Coordination gaps: The police helicopter tasking was not pre-notified to the USAF. This shows the need for better operational coordination.

Risk Assessment for UK Drone Operations

Potential Scenarios and Risk Levels:

Misidentification by other aircraft:
- Likelihood: Medium
- Severity: Low to Medium
- Risk Level: Moderate overall, but High reputationally
No traffic info under Basic Service:
- Likelihood: Medium
- Severity: Medium
- Risk Level: Moderate
Public/media backlash from perceived near-miss:
- Likelihood: High
- Severity: High
- Risk Level: High (especially for commercial operators)

Key Mitigations for Drone Operators:

Use dual EC systems (ADS-B OUT and ground-based detect-and-avoid).
Maintain a telemetry and flight log archive for every operation.
Pre-notify military ATC when operating near MOD airspace.
File CANPs, NOTAMs, or Temporary Danger Areas when applicable.
Train pilots to request an upgrade to Traffic Service where required.

Legal and Regulatory Observations

SERA.3205 and ANO Article 239 set the standard for proximity liability. Keep compliance well-documented.
Expect growing pressure for mandatory electronic conspicuity, with incidents like this cited in policy.
If blamed in media or police statements without evidence, drone operators may have grounds for defamation or economic loss claims. Get legal advice promptly.

Final Thoughts

This wasn’t a drone incident — but it could have been perceived as one.

The lesson? Control the narrative by controlling the data.
Record everything. Secure it. Share it when necessary. With the right evidence, drone operators can protect themselves from false blame and help improve UK airspace safety.

About the Author

Richard Ryan is a UK barrister and aviation lawyer specialising in drone regulation, UAS integration, and counter-drone law. A Fellow of the Chartered Institute of Arbitrators, he advises police forces, government bodies, and commercial operators on airspace compliance and emerging UTM frameworks. He is also completing a PhD on airspace integration and unmanned traffic management at Cranfield University.

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Legal Issues in Drone Operations: A UK Perspective on Safety, Compliance, and Lessons from the GEN 3.8 Incident in Ireland

admin.richard — Mon, 11 Nov 2024 07:47:06 +0000

Legal Issues in Drone Operations: A UK Perspective on Safety, Compliance, and Lessons from the GEN 3.8 Incident in Ireland

By Richard Ryan, Blakiston’s Chambers

The recent Air Accident Investigation Unit (AAIU) report on the GEN 3.8 drone accident in Ireland gives us a significant case study on drone operations in urban areas. The incident highlights important safety and legal concerns that apply to unmanned aircraft systems (UAS), which are highly relevant to both Irish and UK drone regulations. This blog explores these issues in the context of the UK’s Aviation Act 1982 and the Air Navigation Order 2016 (ANO) and contrasts them with the legal framework in Ireland.

Overview of the Incident

In July 2022, a GEN 3.8 drone, conducting an urban delivery in Balbriggan, Ireland, experienced a mechanical failure when one of its propeller blades detached. This failure triggered an emergency descent and parachute deployment, causing a minor injury to a bystander. While the consequences of the accident were relatively minor, it underlines the importance of strong legal frameworks for safe drone operations, especially in populated areas.

The UK Legal Framework for Drone Operations

In the UK, drone operations are governed by several key laws and regulations:

1. Aviation Act 1982

The Aviation Act provides the overall legal framework for civil aviation in the UK. It gives the Civil Aviation Authority (CAA) the power to regulate aviation safety and enforce compliance.

The CAA can also develop specific regulations for unmanned aircraft to address the risks and challenges that drone technology presents.

2. Air Navigation Order 2016 (ANO)

The ANO is the primary legislation for regulating UAS operations. It categorizes drones into Open, Specific, and Certified categories, depending on the risk involved in the operation.

Article 241 of the ANO prohibits endangering people or property with a drone, requiring drones to maintain safe distances from people, buildings, and crowded areas. This is especially relevant for urban delivery flights.

3. Requirement for Operational Authorisation

For commercial operations, like the GEN 3.8 urban deliveries, an operational authorisation under the Specific category is required. This involves conducting a risk assessment and putting safety measures in place, such as emergency systems and proper documentation.

UK operators must prove to the CAA that they have identified and mitigated risks, which includes being prepared for mechanical issues like those seen in the GEN 3.8 case.

Comparison with Ireland’s Legal Framework

Ireland’s drone regulations are similar to those of the UK but have some key differences:

1. Regulatory Basis

In Ireland, drone operations are regulated by the Irish Aviation Authority (IAA) under the EU’s Implementing Regulation (EU) 2019/947, which applies to all EU member states. Like the UK’s CAA, the IAA oversees aviation safety and authorises specific operations.

Since the UK left the EU, it has adapted its own regulations to keep pace with the rapid evolution of drone technology.

2. LUC Certificates and Specific Category Requirements

Similar to the UK’s Specific category authorisation, Ireland issues Light UAS Operator Certificates (LUC) to operators meeting specific standards. This allows them to conduct higher-risk operations under IAA oversight.

The GEN 3.8 drone operated under Ireland’s Specific category. However, there were delays in reporting the incident, showing the need for better communication between the operator, IAA, and the AAIU.

3. Accident Reporting Requirements

In Ireland, regulations require that any drone accident resulting in injury or significant damage must be reported to the AAIU. The GEN 3.8 incident was only reported after it appeared on social media, suggesting delays in the reporting process.

In the UK, the ANO 2016 requires that accidents are reported to the CAA immediately, with strict penalties for non-compliance. This ensures a timely investigation and response, which is essential for public safety.

Key Takeaways for UK Drone Operators

The GEN 3.8 incident highlights several important lessons for drone operators in the UK:

1. Strict Compliance with Manufacturer Guidelines

The GEN 3.8 incident showed that its propellers were not designed for the way they were used, which led to the failure. UK law requires operators to maintain drones as per the manufacturer’s guidelines to avoid similar problems.

2. Robust Reporting Mechanisms

The delay in reporting the GEN 3.8 incident shows why prompt reporting is essential. In the UK, operators must report any accidents involving injuries or property damage to the CAA without delay. This helps ensure quick investigation and corrective action.

3. Operational Risk Assessment and Safety Measures

UK operators must conduct a risk assessment before undertaking operations. The GEN 3.8’s emergency parachute deployment is a good example of how an effective Flight Termination System (FTS) can help mitigate risks.

4. Public Liability and Insurance Requirements

UK law requires commercial operators to carry public liability insurance to cover injuries or property damage. The GEN 3.8 accident is a reminder of why adequate insurance is crucial for managing liability in unforeseen incidents.

Conclusion: Strengthening Drone Safety Regulations

The GEN 3.8 incident serves as a valuable lesson for drone operators and regulators in the UK and Ireland. It emphasises the importance of following safety standards, having efficient reporting systems, and conducting thorough risk assessments. In the UK, the Aviation Act 1982 and ANO 2016 provide a solid foundation for managing the risks of urban drone operations. As drone technology evolves and urban deliveries become more common, the UK must keep improving its regulations to ensure public safety.

For operators, compliance is only the beginning. By understanding drone regulations and putting the best safety practices in place, they can ensure their operations are both safe and legally sound.

Richard Ryan is an experienced drone lawyer specialising in unmanned aircraft systems (UAS) and aviation law. He provides expert legal guidance on regulatory compliance, licensing, and operational issues to clients navigating the complexities of drone technology.

Disclaimer: This blog is for informational purposes only and does not constitute legal advice. For legal counsel regarding specific situations, please consult a qualified drone lawyer.

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What’s relevant for Drone Operators when the drone crashes – lessons learned from Alauda Airspeeder MkII?

zeroabove — Wed, 24 Feb 2021 15:49:39 +0000

Having reviewed the 65 pages of the AAIB-25876 report in respect of the Alauda Airspeeder MkII owned by Riotplan Proprietary Limited trading as Alauda Racing crash on 4 July 2019 at Goodwood Aerodrome, the following comments are relevant:

1.There is reference to the commanders flying experience in hours, which included the last 90 days and the last 28 days. Are your records up-to-date?

2. The operators Operating Safety Case (OSC) contained several statements that were shown to be untrue. What does your OSC state?

3. In this case the CAA did not meet the operator or inspect the UA before the accident flight. Why not invite the CAA to inspect your platform so that you have it on record?

4. The CAA were not present at the test flight. Why not invite the CAA to attend the test flight?

5. The UA sustained damage to its landing gear as a consequence of loss of power on a test flight the day before the accident. Under the regulations, the OSC and the exemption provided by the CAA, this was supposed to have been reported, but was not. If in doubt, report?

6. Observing on the day in question, were two members of the CAA’s UAS unit, who were involved in assessing the operator’s application for exemption.

7. At the CAA UAS unit the section lead was a signatory on the exemption and he joined the CAA in May 2018. There have been numerous questions on resources that pertain to the CAA UAS unit. This is further endorsed by report which states “the CAA stated that the level of resources available meant it was not possible for the UA sector team to follow up every exemption.”

8. The CAA asked the Australian Civil Aviation Authority for further information, which does not appear to have been provided. However, the AAIB did ask CASA, and some information was provided. Does this mean that regulators will only correspond in the event of a serious incident? This is certainly going to become much more relevant for those drone operators that are operating in EU jurisdictions and how the EU intends to harmonise information in the future in order to allow drone operators to fly in different jurisdictions when qualified in another. It will be interesting to see how the UK intends to accept drone operators from the EU based upon UK regulations as these regulations may diverged in the future;

9. If you have a number of transmitters as part of your OSC that relate to redundancy, don’t leave them in the workshop!

10. The AAIB will appoint experts to examine certain aspects of the UA. In this case, experts were used to examine the circuit boards for compliance and specialist video forensic examiners using photogrammetry (interestingly from video, the expert was able to determine the UA’s heading, ground speed and altitude);

11. The AAIB compared this UA’s manufacture to EASA’s Special Conditions that relate to gliders with electric propulsion units and associated high-voltage batteries. In the event that there is an absence of regulation, comparisons will be made to other similar regulatory standards;

12. When writing mitigation measures for single points of failure, be mindful that if there is a failure in radio link communication that the UA will continue flying using its last known command. Interestingly, in this case there was no consideration on the effect of a kill switch not operating and that the hazard of a “flyaway” was not considered;

13. As a drone operator, do not state that your system has a return to home function when no GPS is fitted to the UA!

14. From an operator’s perspective, the operator in this case appears to make the admission that there was insufficient time and resources to adequately test and stabilise their equipment in unfamiliar surroundings. Additionally they stated that the team were all relatively inexperienced with aviation systems, procedures, required documentation and the need to formally understand and adhere to these processes. These are significant statements that underline the culture of an organisation in its approach to safe use of equipment and its emphasis on providing necessary training. Do your teams understand the legal obligations that relate to your operational authorisation and/or OSC?

15. As of August 2020, there are over 106,000 registered UA operators in the UK and over 45,000 operators flying model aircraft. That is a significant number of operators that require relevant training and understanding of their legal obligations;

16. According to the drones reunited website, the CAA state that most flyaways occur due to battery loss, poor signal, or a technology failure and some of this is also down to pilot error. It is essential that these aspects are covered in your risk assessment;

17. There are a number of amendments with respect to safety recommendations to CAP 722, which are:

1. detailed evaluation of any unmanned aircraft systems that use on-board systems to mitigate risks with risk severity classifications of “major, hazardous or catastrophic.”
2. guidance on the planning, completion and documenting of radiofrequency surveys to reduce the risk of radio-frequency interference or signal loss when operating unmanned aircraft systems;
3. unmanned aircraft system operators that use unmanned aircraft which rely on a radiolinks to operate safety systems are to provide radiofrequency survey reports to the CAA for review;
4. guidance on how to define an unmanned aircraft systems operational and safety areas, using up-to-date maps, accurate trajectory analysis and human automated safety system reaction times to ensure a safe operation;
5. the CAA are to provide examples of unmanned aircraft system safety systems;
6. the report recommends that the CAA introduce requirements to define a minimum standard for safety systems to be installed in unmanned aircraft systems operating under an operational authorisation to ensure adequate mitigation in the event of a malfunction;
7. data recording systems which are capable of demonstrating compliance with the authorisations conditions, safe operation and the logging of any failures which may affect the safe operation of the unmanned aircraft system are to be required;
8. minimum requirements for the monitoring of high-voltage stored energy devices to ensure safety of operations are recommended;
9. operators of unmanned aircraft systems should have an effective safety management system in place prior to issuing an operational authorisation;
10. expect an inspection from the CAA when seeking an operational authorisation for an unmanned aircraft system that the CAA have not previously had experience with;
11. expect the CAA to adopt appropriate design, production, maintenance and reliability standards for all unmanned aircraft systems with aircraft capable of imparting over 80 J of energy, the same recommendation is made to EASA. It will be interesting to see how this develops within the new CE marking regime that is to apply in the future;

This is a really useful case study for drone operators to consider. It certainly is a timely reminder to make sure that your operational safety cases and/or OSC’s are up-to-date and that all the staff that are involved in your operation are cognisant of their legal obligations with respect to the regulations, the OSC and the exemption provided by the Civil Aviation Authority. If you have any questions about this or any other legal issues, please email info@blakistons.com

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