ASN Wikibase Occurrence # 179306
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| Date: | Saturday 5 September 2015 |
| Time: | 23:36 |
| Type: |  Cessna TR182 Turbo Skylane |
| Owner/operator: | Private |
| Registration: | N4707S |
| MSN: | R18201393 |
| Year of manufacture: | 1979 |
| Total airframe hrs: | 2142 hours |
| Engine model: | Lycoming O-540-L3C5D |
| Fatalities: | Fatalities: 1 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Midland International Airport (KMAF), Midland, TX -
 United States of America
|
| Phase: | Take off |
| Nature: | Private |
| Departure airport: | Midland, TX (MAF) |
| EL PASO, TX (ELP) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The commercial pilot took off from the airport in the airplane with three passengers on board. The pilot reported that, during the takeoff and while crossing the departure end of the runway, the engine began to lose power. The pilot managed to climb and level off the airplane about 40 ft above ground level. The airplane would not maintain altitude, so he conducted a wheels-up landing in a field. The passengers reported that, during the forced landing, the airplane struck a rock and stopped suddenly. The pilot sustained serious injuries and died 24 days after the accident.
Postaccident examination confirmed flight control continuity. An examination of the turbocharger revealed that the wastegate actuating cable was frayed and kinked at both ends. When the throttle was advanced, the cable bound. The bypass valve’s actuator arm was corroded, and the bolt and nut used to fasten the actuator cable to the arm were seized and corroded. An examination of the single-driven dual magneto revealed that both sides had improper ignition timing. A subsequent examination revealed that the points were worn. During a bench test, the magneto operated normally. Because the engine was test run successfully with the wastegate cable, bypass valve actuator, and magneto in place, it is unlikely that they directly caused the partial loss of engine power. However, the role they might have played in the power loss could not be determined.
Probable Cause: The partial loss of engine power for reasons that could not be determined based on the available evidence.
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=4707S
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 06-Sep-2015 02:10 | Geno | Added |
| 06-Sep-2015 02:11 | Geno | Updated [Aircraft type, Narrative] |
| 21-Dec-2016 19:30 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 12-Dec-2017 20:00 | ASN Update Bot | Updated [Operator, Total fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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