ASN Wikibase Occurrence # 40069
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| Date: | Monday 18 May 1998 |
| Time: | 19:20 LT |
| Type: |  Piper PA-23-160 Apache |
| Owner/operator: | Seward Leasing Inc. |
| Registration: | N4410P |
| MSN: | 23-1922 |
| Engine model: | Lycoming O-360-A1A |
| Fatalities: | Fatalities: 2 / Occupants: 3 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Guthrie, OK -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | (KGOK) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During a multi-engine certification check flight, the left engine was shut down and feathered. The designated pilot examiner then had the applicant restart the engine. The restart was unsuccessful, and the examiner took control of the aircraft, returning to the originating airport. The applicant performed the manual gear extension procedures, but the landing gear position could not be verified, and the gear was not down and locked on final approach. The examiner executed a go-around; however, the airplane was unable to maintain altitude. The airplane impacted trees, and terrain while descending during the go-around. A post impact fire destroyed the aircraft. The landing gar was found in the retracted position, and the left propeller was found in the retracted position, and the left propeller was found feathered. Metallurgical examination found areas of electrical arcing in the part of the starter cable passing through the wing root. When the left engine starter was energized using an exemplary cable, the starter rotated the engine crankshaft. Density altitude was calculated at 3,100 feet. The aircraft manufacturer reported ad single-engine aircraft climb capability of -7 feet per minute with the landing gear extended.
Probable Cause: The designated pilot examiner's decision to execute a single engine go-around which exceeded the airplane's engine out climb capability in the gear down configuration. Factors were the arcing of an electrical wire that grounded the engine starter and the high density altitude.
Accident investigation:
 |
|
Sources:
NTSB FTW98FA229
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Oct-2019 18:47 | Uli Elch | Updated [Aircraft type, Departure airport, Narrative] |
| 07-Apr-2024 12:24 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Departure airport, Source, Narrative, Category, Accident report] |
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