ASN Wikibase Occurrence # 133914
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| Date: | Monday 11 December 1995 |
| Time: | 19:20 LT |
| Type: |  Piper PA-23-250 Aztec |
| Owner/operator: | Robert G. Timm |
| Registration: | N54791 |
| MSN: | 27-7554092 |
| Total airframe hrs: | 6639 hours |
| Engine model: | Lycoming IO-540-C4B5 |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Steuben, WI -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Wausau, WI (KAUW) |
| Tulsa, OK (KTUL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
ACCORDING TO A REAR SEAT PASSENGER, THE AIRPLANE WAS FLYING THROUGH HEAVY SNOW, WHEN BOTH ENGINES LOST POWER. THE LOSS OF POWER OCCURRED AS THE AIRPLANE WAS FLYING IN INSTRUMENT CONDITIONS AT NIGHT. SUBSEQUENTLY, THE AIRPLANE DESCENDED AND WAS DESTROYED, WHEN IT COLLIDED WITH TREES. DURING AN EXAMINATION OF THE AIRPLANE ON DECEMBER 13, 1995, ICE WAS FOUND IN THE AIR INDUCTION SYSTEM OF BOTH ENGINES. NO OTHER AIRPLANE OR ENGINE MALFUNCTION WAS FOUND DURING THE EXAMINATION. THE PILOT'S OPERATING HANDBOOK STATED THAT ALTERNATE AIR SHOULD BE PLACED IN THE FULL 'ON' POSITION PRIOR TO ENTERING KNOWN OR EXPECTED ICING CONDITIONS.
Probable Cause: failure of the pilot to select alternate air. Darkness and snowy weather conditions were related factors.
Accident investigation:
 |
|
Sources:
NTSB CHI96FA052
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 09-Apr-2024 10:39 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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