ASN Wikibase Occurrence # 134089
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| Date: | Friday 30 August 1996 |
| Time: | 15:30 LT |
| Type: |  Piper PA-22-108 |
| Owner/operator: | Houck, Stanley E. |
| Registration: | N4992Z |
| MSN: | 22-8600 |
| Year of manufacture: | 1961 |
| Total airframe hrs: | 2800 hours |
| Engine model: | Lycoming O-235-C1 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Ashland, OR -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Ashland, OR (S03) |
| Creswell, OR (77S) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The private pilot, who was also an A&P mechanic, and a passenger took off on a cross-country flight. During the initial climbout, the pilot smelled something burning and decided to return for landing. White smoke entered the cockpit, followed by black smoke and a small flame under the instrument panel. While on short final approach, the engine lost power, and the pilot could not see outside the airplane due to the smoke in the cabin. The airplane touched down and the occupants escaped without injury. The airplane continued to burn and was destroyed. Examination of the wreckage revealed that a worn exhaust system clamp had come loose. The exhaust pipe became disconnected and imparted hot gasses onto the voltage regulator. The electrical wiring on the regulator subsequently burned and became shorted. An electrical fire and cabin fire followed. The pilot/mechanic had purchased the airplane three months before the accident after an annual inspection. The maintenance log books were not recovered. Verification of the last inspections, as well as compliance with an FAA airworthiness directive regarding exhaust system inspection every 50 hours, could not be confirmed.
Probable Cause: inadequate inspection of the airplane by maintenance personnel,and a worn exhaust clamp, which resulted in a disconnected exhaust pipe, exhaust leak, burning and shorting of electrical wiring associated with the voltage regulator, and a cabin fire.
Accident investigation:
 |
|
Sources:
NTSB SEA96LA206
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 08-Apr-2024 19:19 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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