ASN Wikibase Occurrence # 172615
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| Date: | Wednesday 31 December 2014 |
| Time: | 13:30 LT |
| Type: |  MD Helicopters MD530F (369FF) |
| Owner/operator: | Las Vegas Metropolitan Police |
| Registration: | N530KK |
| MSN: | 0174FF |
| Year of manufacture: | 2010 |
| Total airframe hrs: | 7314 hours |
| Engine model: | Rolls Royce 250-C30 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Location: | Las Vegas, NV -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Aerial patrol |
| Departure airport: | Las Vegas-North Las Vegas Airport, NV (VGT/KVGT) |
| Las Vegas-North Las Vegas Airport, NV (VGT/KVGT) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The commercial pilot was conducting a local public flight. He reported that, about 7 minutes into the flight, while the helicopter was orbiting over a fixed area, he noticed the engine and rotor rpm decrease. The pilot rolled the helicopter out of the orbit, and the engine and rotor rpm stabilized momentarily at 97%. The pilot then attempted to increase the engine and rotor rpm while turning the helicopter toward a nearby airport. During the maneuver, the engine and rotor rpm decreased rapidly. The pilot entered an autorotation and executed an emergency landing. The helicopter then landed hard, and the tail impacted the ground and separated from the airframe.
A postaccident examination of the airframe and the engine revealed no anomalies that would have precluded normal operation. During an engine test run, the engine produced rated power. Examination of the fuel system revealed no anomalies, and a fuel sample taken from the helicopter tested positive as jet fuel (Jet A). The reason for the loss of engine power could not be determined.
Probable Cause: A total loss of engine power during cruise flight for reasons that could not be determined because postaccident examination and testing did not reveal any anomalies that would have precluded normal operation.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Jan-2015 09:31 | gerard57 | Added |
| 01-Jan-2015 09:33 | harro | Updated [Aircraft type, Registration, Cn, Operator] |
| 01-Jan-2015 18:13 | Aerossurance | Updated [Nature, Source, Narrative] |
| 02-Jan-2015 05:10 | Geno | Updated [Location, Departure airport, Destination airport, Source] |
| 02-Jan-2015 18:40 | Geno | Updated [Source] |
| 04-Jan-2015 20:57 | Aerossurance | Updated [Source] |
| 10-Jan-2015 00:29 | Geno | Updated [Time, Phase, Source, Narrative] |
| 04-May-2015 15:35 | TB | Updated [Aircraft type, Location] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 11-Oct-2017 07:36 | ASN Update Bot | Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
| 27-May-2018 09:29 | Aerossurance | Updated [Time, Operator, Nature] |
| 31-May-2023 05:09 | Ron Averes | Updated [[Time, Operator, Nature]] |
Corrections or additions? ... Edit this accident description
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