ASN Wikibase Occurrence # 362677
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Date: | Sunday 15 November 1992 |
Time: | 09:50 LT |
Type: | Cessna 172G |
Owner/operator: | Private |
Registration: | N6060R |
MSN: | 17253727 |
Year of manufacture: | 1965 |
Total airframe hrs: | 3549 hours |
Engine model: | CONTINENTAL O-300D |
Fatalities: | Fatalities: 0 / Occupants: 3 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Williams, AZ -
United States of America
|
Phase: | Initial climb |
Nature: | Private |
Departure airport: | (P32) |
Destination airport: | Prescott, AZ (KPRC) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE PILOT, THE PILOT RATED PASSENGERS AND A MECHANIC GROUND WITNESS REPORTED THAT THE AIRCRAFT USED THE ENTIRE LENGTH OF THE RUNWAY TO BECOME AIRBORNE. THE AIRCRAFT WOULD NOT CLIMB, AND, WHILE FLYING IN GROUND EFFECT, COLLIDED WITH A TREE ABOUT ONE MILE OFF THE END OF THE RUNWAY. THE DENSITY ALTITUDE WAS COMPUTED TO BE JUST OVER 7,000 FEET. THE MECHANIC WITNESS SAID THE ENGINE SOUNDED LIKE THE CARBURETOR HEAT WAS ON DURING THE TAKEOFF GROUND ROLL. DETAILED EXAMINATION OF THE ENGINE REVEALED THAT THE EXHAUST VALVE ON THE NUMBER TWO CYLINDER WAS STUCK IN THE OPEN POSITION. A ENGINE OVERHAUL FACILITY REPORTED THAT THE VALVE WAS STUCK DUE TO 'A CONSIDERABLE AMOUNT OF CARBON' IN THE VALVE GUIDE.
Probable Cause: THE PARTIAL LOSS OF ENGINE POWER DUE TO A STUCK EXHAUST VALVE ON THE NUMBER TWO CYLINDER AND THE PILOT'S INABILITY TO CLIMB THE AIRCRAFT ABOVE THE TREES SURROUNDING THE AIRPORT. A FACTOR IN THE ACCIDENT WAS THE EFFECTS OF THE HIGH DENSITY ALTITUDE ON THE AIRCRAFT CLIMB PERFORMANCE.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | LAX93LA040 |
Status: | Investigation completed |
Duration: | 9 months |
Download report: | Final report |
|
Sources:
NTSB LAX93LA040
Location
Revision history:
Date/time | Contributor | Updates |
18-Mar-2024 09:10 |
ASN Update Bot |
Added |
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