ASN Wikibase Occurrence # 14661
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Date: | Wednesday 13 February 2008 |
Time: | 12:55 |
Type: | Piper PA-23-250 Aztec |
Owner/operator: | Storm Flying Service Inc |
Registration: | N62793 |
MSN: | 27-7754030 |
Total airframe hrs: | 10924 hours |
Engine model: | Lycoming IO-540-C4B5 |
Fatalities: | Fatalities: 1 / Occupants: 1 |
Aircraft damage: | Destroyed |
Category: | Accident |
Location: | Sterling, Kansas -
United States of America
|
Phase: | En route |
Nature: | Ferry/positioning |
Departure airport: | Wichita, KS (ICT) |
Destination airport: | Hays, KS (HYS) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The airplane was in cruise flight at 6,000 feet mean sea level when it entered an uncontrolled descent and impacted terrain in a right wing low attitude. The airplane cartwheeled, impacted a cow, and scattered components and debris over a distance of 668 feet. Examination of both stabilators revealed extensive aft streaking, initiating along the forward rivet line, consistent with working or "smoking" rivets. Examination of the stabilator trim tab fittings exhibited little deformation and the inboard rivet faces had been knocked off. The stabilator trim pushrod was not attached. The securing nut and cotter pin, used to secure the pushrod to the tab was missing. The lack of deformation to the trim pushrod is indicative that the securing nut backed out during flight. The stabilator trim bellcrank, left side, was loose within its attach point and exhibited significant freeplay. Disassembly revealed elongation of the attach hole. These observations indicate prolonged inadequate maintenance. A review of the pilot's training, experience, and qualifications revealed no issues.
Probable Cause: The loss of pitch control during cruise flight resulting from the separation of the stabilator trim actuator due to inadequate maintenenace.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | DEN08FA058 |
Status: | Investigation completed |
Duration: | 10 months |
Download report: | Final report |
|
Sources:
NTSB
Location
Revision history:
Date/time | Contributor | Updates |
25-Feb-2008 22:16 |
Circeus |
Added |
02-Feb-2010 11:44 |
PL |
Updated [Cn, Narrative] |
21-Dec-2016 19:13 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
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 09:35 |
ASN Update Bot |
Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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