Accident Hughes 369D N400BE, 19 Jul 2008
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ASN Wikibase Occurrence # 21778
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Type:Silhouette image of generic H500 model; specific model in this crash may look slightly different    
Hughes 369D
Owner/operator:Bbp Air Llc
Registration: N400BE
MSN: 470115D
Fatalities:Fatalities: 3 / Occupants: 3
Aircraft damage: Written off (damaged beyond repair)
Location:near Carbon County Airport, Price, UT -   United States of America
Phase: Take off
Departure airport:Price, UT (KPUC)
Destination airport:Spanish Fork, UT (U77)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Prior to departure, the helicopter was refueled, a child passenger was replaced with an adult, and additional baggage (exact weight unknown) was added. While fueling, the pilot had a discussion with another pilot stating that the conditions at the airport may make the departure more difficult. The helicopter was observed taking off to the south and then making a right turn towards the northwest. As the helicopter approached the perimeter fence of the airport it was observed to be descending. The accident site was located about .5 nm from the last observed position. The first identified point of impact appeared to be where the left skid tube hit the ground. The ground scar was not in line with the direction of the debris energy path, but was about 270 degrees to the right. The on-scene examination of the accident site indicated that the helicopter first impacted the ground with its left skid, in a more vertical than horizontal vector. The main rotor blades displayed low rotor damage signatures. At the time of the accident the density altitude was computed to be 9,330 feet mean sea level (msl), and the pressure altitude was computed to be 5,827 feet msl. A conservative weight of the helicopter was calculated to be approximately 2,823 pounds. The helicopter’s certified gross weight is 3,000 pounds. The calculated hover performance in ground effect (HIGE) was determined to be at least 63 pounds over the performance capabilities of the helicopter. The calculated hover performance out of ground effect (HOGE) was determined to be at least 223 pounds over the performance capabilities of the helicopter. Witnesses reported the winds at the time of the accident as 10 knots out of the south. Post accident examination of the airframe and engine components found no anomalies that would have precluded normal operation.
Probable Cause: The pilot's inadequate preflight performance planning for the takeoff and the loading that exceeded the lift performance capability of the helicopter.



Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 5 months
Download report: Final report

Revision history:

20-Jul-2008 01:29 Fusko Added
21-Jul-2008 10:21 harro Updated
23-Aug-2008 16:04 Topaz Updated
23-Aug-2008 16:10 Topaz Updated
21-Dec-2016 19:14 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Dec-2016 19:16 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Dec-2016 19:20 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
03-Dec-2017 11:28 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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