ASN Wikibase Occurrence # 366468
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Date: | Tuesday 31 July 1990 |
Time: | 11:15 LT |
Type: | Cessna 150M |
Owner/operator: | Private |
Registration: | N704FS |
MSN: | 15078581 |
Year of manufacture: | 1976 |
Total airframe hrs: | 1971 hours |
Engine model: | CONTINENTAL O-200A |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Alvord, TX -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Training |
Departure airport: | Decatur, TX (8F7) |
Destination airport: | Bowie, TX (0F2) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:AT APPROX 200 FEET AGL, UPON COMPLETION OF A PRACTICE FORCED LANDING PROCEDURE, CARBURETOR HEAT WAS DE-SELECTED, FULL THROTTLE APPLIED AND THE FLAP SETTING REDUCED FROM 40 DEG TO 20 DEG. ACCORDING TO THE CFI, THE ENGINE DID NOT DEVELOP FULL POWER WITH THE RPM OBSERVED TO BE 2100 VICE 2700 RPM AT RATED POWER. THE AIRPLANE CONTINUED ON THE SAME HEADING, CROSSED OVER A WOODED AREA BARELY CLEARING THE TREES, AND SETTLED IN A NOSE-HIGH, CONTROLLED ATTITUDE, INTO THE TREES FOLLOWED BY GROUND CONTACT. EXAMINATION AT THE CRASH SITE REVEALED THAT THE CARBURETOR HEAT VALVE OPERATED NORMALLY, THE ENGINE SPARK PLUGS AND EXHAUST STACKS WERE FREE FROM MAJOR DEPOSITS AND THAT THE OUTBOARD TIPS OF THE PROPELLER BLADES WERE BENT OPPOSITE TO THE DIRECTION OF ROTATION. A FOUR INCH DIAMETER OAK LIMB HAD BEEN SLASHED BY THE PROPELLER.
Probable Cause: THE FAILURE OF THE ENGINE TO DEVELOP FULL RATED POWER FOR UNKNOWN REASONS.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | FTW90LA149 |
Status: | Investigation completed |
Duration: | 2 years and 4 months |
Download report: | Final report |
|
Sources:
NTSB FTW90LA149
Location
Revision history:
Date/time | Contributor | Updates |
21-Mar-2024 05:47 |
ASN Update Bot |
Added |
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