ASN Wikibase Occurrence # 163472
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Date: | Tuesday 21 January 2014 |
Time: | 15:00 |
Type: | Grumman American AA-5B Tiger |
Owner/operator: | Private |
Registration: | N28578 |
MSN: | AA5B-0693 |
Year of manufacture: | 1978 |
Total airframe hrs: | 32055 hours |
Engine model: | Lycoming O-360-A4K |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Willow Park, TX -
United States of America
|
Phase: | En route |
Nature: | Private |
Departure airport: | Whitney, TX (F50) |
Destination airport: | Whitney, TX (F50) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The pilot reported that he heard a loud noise during cruise flight and that the airplane then started losing altitude. He subsequently conducted a forced landing, which resulted in substantial damage to the airplane. A postaccident examination revealed that the propeller assembly had separated from the engine propeller flange. Four of the six propeller bolts were intact, consistent with the bolts backing out before the propeller separated. The remaining two bolts were unable to transfer the loads from the propeller, and they subsequently failed. The pilot reported that the propeller was removed during the most recent annual inspection, which was completed about 1 year before the accident. The airplane had accumulated about 14 hours flight time since the inspection. Although the airplane maintenance logbook entry for the inspection did not indicate that the propeller was removed or reinstalled, it is likely that the propeller assembly was improperly reinstalled at some point, which resulted in its subsequent in-flight separation.
Probable Cause: The improper reinstallation of the propeller assembly, which resulted in the subsequent in-flight separation of the propeller.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CEN14LA118 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB
FAA register:
http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=28578 Location
Revision history:
Date/time | Contributor | Updates |
23-Jan-2014 04:21 |
Geno |
Added |
23-Jan-2014 06:43 |
Geno |
Updated [Registration, Cn, Operator, Source] |
21-Dec-2016 19:28 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
29-Nov-2017 13:20 |
ASN Update Bot |
Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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