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D150 / H500, London UK, 2007
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Summary |
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On 5 October 2007, a loss of separation occurred between a Hughes 369 helicopter and a Jodel D150. The incident occurred outside controlled airspace, in VMC, and the estimated vertical separation as the Jodel took avoiding action by descending, was assessed by both pilots to be less than 50 feet. |
Event Details | |
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When | October 2007 |
Actual or Potential Event Type |
Human Factors, Loss of Separation |
Day/Night | Day |
Flight Conditions | VMC |
Flight Details | |
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Aircraft | JODEL D-150 Mascaret |
Operator | Private |
Type of Flight | Private |
Origin | Sleap |
Intended Destination | Lashenden/Headcorn |
Take off Commenced | Yes |
Flight Airborne | Yes |
Flight Completed | Yes |
Flight Phase | Cruise |
ENR |
Flight Details | |
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Aircraft | HUGHES 369 |
Operator | Private |
Type of Flight | Private |
Intended Destination | White Waltham Airfield |
Take off Commenced | Yes |
Flight Airborne | Yes |
Flight Completed | Yes |
Flight Phase | Cruise |
ENR |
Location | |
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Approx. | Bricket Wood, UK |
General | |
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Tag(s) | Aircraft-aircraft near miss |
HF | |
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Tag(s) | Distraction, Ineffective Monitoring |
LOS | |
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Tag(s) | See and Avoid Ineffective, Released to Own Separation, Near Miss |
Outcome | |
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Damage or injury | No |
Aircraft damage | None"None" is not in the list (Minor, Major, Hull loss) of allowed values for the "Aircraft damage" property. |
Injuries | None"None" is not in the list (Few occupants, Many occupants, Most or all occupants) of allowed values for the "Injuries" property. |
Fatalities | None"None" is not in the list (Few occupants, Many occupants, Most or all occupants) of allowed values for the "Fatalities" property. () |
Causal Factor Group(s) | |
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Group(s) | Aircraft Operation |
Safety Recommendation(s) | |
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Group(s) | None Made |
Investigation Type | |
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Type | Independent |
Description
On 5 October 2007, a loss of separation occurred between a Hughes 369 helicopter and a Jodel D150. The incident occurred outside controlled airspace, in VMC, and the estimated vertical separation as the Jodel took avoiding action by descending, was assessed by both pilots to be less than 50 feet.
The helicopter pilot's workload at the time of the incident was high as a result of frequency and transponder changes, and he did not notice the Jodel until it passed under his aircraft.
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Further Reading
- For further information, see the UK Airprox Board Report No. 148/07.