ASN Wikibase Occurrence # 285649
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| Date: | Tuesday 26 August 2008 |
| Time: | 12:15 LT |
| Type: |  Grumman G-164B Tubo Ag-Cat |
| Owner/operator: | Howard Flying Service |
| Registration: | N3633S |
| MSN: | 778B |
| Year of manufacture: | 1986 |
| Total airframe hrs: | 10282 hours |
| Engine model: | P&W PT6A-27/28 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Clarksdale, Mississippi -
 United States of America
|
| Phase: | Taxi |
| Nature: | Agricultural |
| Departure airport: | Clarksdale-Fletcher Field, MS (CKM/KCKM) |
| Clarksdale-Fletcher Field, MS (CKM/KCKM) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While applying the left brake during taxi after landing, the pilot first heard a "loud pop from the left gear" and during further brake application, the left axle and wheel assembly separated. Two MS20008H22 bolts and one AN509-616-35 screw that secure the axle to the spring leg were fractured. The failure mode of the bolts was due to fatigue, and was typical of bolts that are insufficiently torqued. The mechanic who last inspected the airplane used his own checklist and did not torque check the bolts and screw, which is required by the manufacturer's Annual/100-Hour Airframe Inspection Checklist.
Probable Cause: The mechanic's failure to torque check the axle-to-spring gear attachment bolts per the manufacturer's Annual/100-Hour Airframe Inspection Checklist, resulting in fatigue failure of the bolts.
Accident investigation:
 |
|
Sources:
NTSB MIA08LA174
History of this aircraft
Other occurrences involving this aircraft
| 8 June 1991 | N36335 | Mid Continent Aircraft | 0 | Newport, AR | |
sub |
| 29 June 2013 | N3633S | Airworks LLC | 0 | Jackson, Tennessee | |
sub |
| Gear collapse | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Oct-2022 12:50 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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