ASN Wikibase Occurrence # 36015
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| Date: | Saturday 25 September 1999 |
| Time: | 06:42 LT |
| Type: | Kaman HH-43F |
| Owner/operator: | Moseley Aviation, Inc. |
| Registration: | N100PL |
| MSN: | 59-1583 |
| Year of manufacture: | 1961 |
| Total airframe hrs: | 5139 hours |
| Engine model: | Lycoming T53-L-13B |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Phoenix, AZ -
 United States of America
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Litchfield Park, AZ |
| (NONE) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Ground witnesses reported seeing the helicopter disintegrate in-flight, about 250 feet above ground level. The helicopter impacted the ground in a nearly inverted attitude, scattering rotor blade fragments on both sides of a canal. The ex-military, medium lift helicopter with twin intermeshing rotors was en route to perform an off-airport lift operation. It operated in the 'restricted' category and was required to fly over unpopulated areas. At the time of the accident, it was flying parallel with a canal. Examination of the wreckage revealed that the fixed horizontal stabilizer left outboard leading edge attach fitting had fractured and exhibited evidence of a pre-existing crack. A second attach fitting aft of the leading edge attachment was also fractured. Additionally, the operator had installed automotive dampers in lead-lag positions on the rotor blades.
Probable Cause: Failure of the horizontal stabilizer left outboard forward attach point because of a previously existing crack that resulted from inadequate maintenance inspection by the operator. A factor was the use of automotive parts.
Accident investigation:
 |
|
Sources:
NTSB LAX99FA317
History of this aircraft
Other occurrences involving this aircraft
| 9 April 1992 | N100PL | Precision Lift, Inc | 0 | Manteo, NC | |
sub |
| 11 December 1992 | N100PL | Precision Lift, Incorporated | 0 | Columbia, SC | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:22 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 14-Dec-2017 09:03 | ASN Update Bot | Updated [Operator, Departure airport, Destination airport, Source, Narrative] |
| 07-Apr-2024 17:45 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
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