ASN Wikibase Occurrence # 199715
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| Date: | Friday 15 September 2017 |
| Time: | 16:20 |
| Type: |  Beechcraft A36 Bonanza |
| Owner/operator: | Private |
| Registration: | N18403 |
| MSN: | E-1120 |
| Year of manufacture: | 1977 |
| Total airframe hrs: | 2515 hours |
| Engine model: | Continental IO-520-BB |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | S of McAlester Regional Airport, OK -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | Uvalde, TX (UVA) |
| McAlister, OK (MLC) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The private pilot stated that the flight originated with full fuel tanks. About 8 minutes after takeoff, he noticed fuel leaking from the left fuel tank cap for a short period. The pilot continued the flight, switching fuel tanks every 25 minutes. The flight continued uneventfully until the engine lost total power while the airplane was entering the downwind leg to land. The pilot switched fuel tanks and attempted to restart the engine to no avail. The pilot performed a forced landing in a field; the airplane touched down hard and contacted a hay bale, which resulted in substantial damage to the wings and compromised the fuel system. Postaccident examination of the main fuel tank caps revealed the O-rings were cracked. Maintenance records showed that the O-rings were replaced about 17 months before the accident. Although it is unknown how much fuel leaked from the fuel cap during the flight, the pilot reported that, about 50 minutes before the accident, both fuel tanks were indicating about 3/4 full; thus, it is doubtful that enough fuel would have leaked to result in fuel exhaustion. A postaccident engine test run was conducted with the fuselage strapped down on a trailer; an alternate fuel system was rigged to both the left and right fuel inlet lines at the fuselage. The engine started without hesitation and ran smoothly up to 1,500 rpm using the left fuel tank inlet. The test was repeated using the right fuel tank inlet, and the engine performed in the same manner. The rpm was not increased any higher due to the security of the fuselage during the test. Postaccident examination of the engine did not reveal evidence of preimpact malfunctions or failures that would have precluded normal operation; thus, the reason for the loss of engine power could not be determined.
Probable Cause: A total loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any evidence of mechanical malfunctions or failures that would have precluded normal operation.
Accident investigation:
 |
|
Sources:
NTSB
https://fr.flightaware.com/resources/registration/N18403
https://fr.flightaware.com/live/flight/N18403/history/20170915/1800Z/KUVA/KMLC/tracklog
Location
Media:
Plane crashes in field south of McAlester airport, OK, USAhttps://t.co/x8n9bzOqBf | pic.twitter.com/n6P3HhYJuZ
— Planes Of Legend (@PlanesOfLegend) 16 septembre 2017
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Sep-2017 09:42 | Iceman 29 | Added |
| 16-Sep-2017 12:31 | Aerossurance | Updated [Location, Embed code] |
| 15-Apr-2019 14:45 | ASN Update Bot | Updated [Time, Operator, Nature, Departure airport, Destination airport, Source, Embed code, Narrative, Accident report, ] |
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