ASN Wikibase Occurrence # 381891
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| Date: | Thursday 26 May 1983 |
| Time: | 23:30 LT |
| Type: |  Piper PA-22-150 |
| Owner/operator: | Private |
| Registration: | N9975D |
| MSN: | 22-6766 |
| Total airframe hrs: | 1597 hours |
| Engine model: | Lycoming O-320 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Ennis, MT -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Bozeman, MT (KBZN) |
| American Falls, ID (VOI | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING A NIGHT FLIGHT, OIL BEGAN SPREADING OVER THE WINDSHIELD & HEAVY SMOKE CAME IN THE COCKPIT THROUGH THE CABIN HEATER. THE PLT OPENED THE CABIN WINDOWS, REDUCED POWER & TURNED BACK TOWARD THE ARPT. THE OIL PRESSURE DROPPED TO 5 PSI & THE PLT DESCENDED TO LAND ON A ROAD WHICH COULD BE SEEN ON THE MOONLIT NIGHT. REPORTEDLY, THE ENGINE BEGAN TO 'RATTLE' AS THE ACFT NEARED THE GROUND. THE PLT LINED UP WITH THE ROAD, BUT LOST SIGHT OF IT MOMENTARILY DUE TO CLOUDS OBSCURING THE MOON. JUST BEFORE LANDING, HE SAW A GUY WIRE & MANEUVERED THE PLANE TO AVOID A COLLISION. THE ACFT STALLED & HIT A DITCH, THEN THE NOSE & LEFT MAIN GEAR SHEARED OFF. THE ACFT CONTINUED THRU BUSHES, HIT A FENCE & NOSED OVER. AN INVESTIGATION REVEALED THAT 2 OIL LINES HAD RUBBED TOGETHER UNTIL 1 HAD WORN THRU. THE OIL LINES SHOULD HAVE BEEN PROTECTED BY A RUBBER SPACER & A CLAMP. EITHER THE CLAMP HAD FAILED OR HAD NOT BEEN INSTALLED. SUBSEQUENTLY, THE RUBBER SPACER HAD MOVED & ALLOWED THE LINES TO RUB TOGETHER.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB DEN83LA121
History of this aircraft
Other occurrences involving this aircraft
| 20 April 2017 | N9975D | Private | 0 | Kern County south of Kern Valley Airport (L05), Kernville, CA | |
sub |
| Loss of control | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Apr-2024 08:14 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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