ASN Wikibase Occurrence # 36835
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| Date: | Thursday 14 November 1991 |
| Time: | 11:20 LT |
| Type: |  Piper PA-24-180 |
| Owner/operator: | Gamache, Joseph C |
| Registration: | N5935P |
| MSN: | 24-1025 |
| Year of manufacture: | 1959 |
| Total airframe hrs: | 5329 hours |
| Engine model: | Lycoming O-360-A1A |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Coffeyville, KS -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | Clinton, AR (4M4) |
| Derby, KS (K50) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT TOOK OFF WITH FULL FUEL TANKS AND FLEW FOR ABOUT 2 HOURS 15 MINUTES BEFORE THE ACCIDENT OCCURRED. THE AIRPLANE WAS OBSERVED NEAR THE ACCIDENT SITE, FLYING ERRATICALLY BENEATH A 300 TO 400 FOOT CEILING IN STRONG, GUSTY WIND CONDITIONS. WITNESSES REPORTED THE ENGINE SEEMED TO BE CUTTING IN AND OUT. THE AIRPLANE WAS NORTHBOUND WITH A 25 TO 40 KNOT TAILWIND WHEN IT WAS OBSERVED TO PITCH UP ABRUPTLY, ROTATE LEFT, AND NOSE DOWN INTO THE GROUND. POST-ACCIDENT EXAMINATION OF AIRFRAME, POWERPLANT AND SYSTEMS REVEALED NO EVIDENCE OF PRE-IMPACT FAILURE/DIFFICULTY. THE LEFT FUEL TANK WAS NEARLY FULL OF FUEL. THE RIGHT FUEL TANK WAS COMPROMISED AT IMPACT, HOWEVER THERE WAS NO EVIDENCE OF FUEL SPILLAGE AT THE ACCIDENT SITE. THE LANDING GEAR WAS EXTENDED, FUEL BOOST PUMP WAS ON, AND THE FUEL SELECTOR WAS JAMMED IN AN INTERMEDIATE POSITION. FUEL CONSUMPTION CALCULATIONS (USING 75%) INDICATED AS MUCH AS HALF THE AVAILABLE FUEL MAY HAVE BEEN BURNED.
Probable Cause: THE PILOT'S FAILURE TO MAINTAIN SUFFICIENT AIRSPEED (ABOVE STALL SPEED) DURING THE EMERGENCY PROCEDURE. RELATED FACTORS ARE THE PILOT'S POOR PLANNING/DECISION, INATTENTIVENESS, AND THE WEATHER (LOW CEILING, GUSTY TAILWINDS).
Accident investigation:
 |
|
Sources:
NTSB CHI92FA027
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 11-Apr-2024 11:15 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Source, Narrative, Accident report] |
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