ASN Wikibase Occurrence # 353041
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Date: | Saturday 10 July 1999 |
Time: | 13:30 LT |
Type: | Ryan ST-3KR |
Owner/operator: | Private |
Registration: | N47306 |
MSN: | 1358 |
Year of manufacture: | 1949 |
Total airframe hrs: | 2847 hours |
Engine model: | Kinner R-56 |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Lake City, FL -
United States of America
|
Phase: | En route |
Nature: | Private |
Departure airport: | Albany, GA (KABY) |
Destination airport: | Gainsville, FL (KGNV) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:While at a cruise altitude of 2,500 feet msl the pilot reported that the airplane started to vibrate. He attempted to shut down the engine with no response. He elected to land at a nearby airport, and landed without incident. Examination of the airplane revealed that the propeller came loose from the flange. All of the propeller bolts were found backed out, and none of the bolts were safety wired. The pilot had just purchased the airplane. Examination of the airplane after the accident revealed that several inches of the leading edge of one blade of the propeller was missing. One of two propeller blades split in half from the center to the tip, the propeller bolts were found loose, and all evenly backed out approximately one quarter inch. No locking device or safety wires were attached to the bolt heads. The data sheet does not list the propeller for installation on this aircraft. There were no log book entries found to indicate that the propeller bolts were torqued or tracked on installation or at annual inspection.
Probable Cause: the improper maintenance and inspection of the propeller system, which resulted in loose and improperly torqued bolts, causing the subsequent failure of a propeller blade.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | MIA99LA195 |
Status: | Investigation completed |
Duration: | 11 months |
Download report: | Final report |
|
Sources:
NTSB MIA99LA195
Location
Revision history:
Date/time | Contributor | Updates |
09-Mar-2024 09:43 |
ASN Update Bot |
Added |
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