ASN Wikibase Occurrence # 368810
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| Date: | Wednesday 10 May 1989 |
| Time: | 15:55 LT |
| Type: |  Cessna 402 |
| Owner/operator: | Wilburs Incorporated |
| Registration: | N966JW |
| MSN: | 4020066 |
| Total airframe hrs: | 8881 hours |
| Engine model: | CONTINENTAL IO-520-E |
| Fatalities: | Fatalities: 0 / Occupants: 5 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Tatitlek, AK -
 United States of America
|
| Phase: | Landing |
| Nature: | Unknown |
| Departure airport: | Anchorage, AK (MRI) |
| Tatitlek, AK (AK47) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT-IN-COMMAND TOUCHED DOWN ON THE GRAVEL RUNWAY AND BEGAN TO APPLY BRAKES. THE AIRPLANE BEGAN TO VEER TO THE LEFT AND THE PILOT RELEASED THE BRAKES AND USED ASYMMETRIC POWER AND BRAKING, BUT THE AIRPLANE STILL LEFT THE RUNWAY ABOUT MIDWAY DOWN THE RUNWAY. SUBSEQUENT EXAMINATION REVEALED THAT A SMALL WASHER PLACED BENEATH THE BOLT HEAD, WHICH HOLDS THE UPPER AND LOWER SCISSORS ASSEMBLY TOGETHER, HAD PULLED THROUGH ON THE LEFT MAIN GEAR ALLOWING THE LOWER HALF OF THE MAIN GEAR TO PIVOT FREELY.
Probable Cause: INSTALLATION OF THE IMPROPER WASHER ON THE SCISSORS ASSEMBLY OF THE LEFT MAIN LANDING GEAR. THE EXTRA FORCES ENCOUNTEREDON A GRAVEL RUNWAY WERE SUFFICIENT TO PULL THE BUSHING, WASHER, AND BOLT THROUGH THE SCISSORS ASSEMBLY AND ALLOWING THE LOWER HALF TO PIVOT FREELY.
Accident investigation:
 |
|
Sources:
NTSB ANC89FA070
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Mar-2024 07:41 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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