ASN Wikibase Occurrence # 284613
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| Date: | Wednesday 11 July 2007 |
| Time: | 17:30 LT |
| Type: |  Cessna 172RG |
| Owner/operator: | Avian Flight Center |
| Registration: | N9551B |
| MSN: | 172RG0873 |
| Total airframe hrs: | 7531 hours |
| Engine model: | Lycoming O-360-F1A6 |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Roche Harbor, Washington -
 United States of America
|
| Phase: | Unknown |
| Nature: | Private |
| Departure airport: | Bremerton-Polacca Airport, WA (PWT/KPWT) |
| Roche Harbor, WA (WA09) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
As the airplane approached the destination airport, it had an electrical failure. The pilot stated he was concerned about the potential for an electrical fire, and elected not to attempt to troubleshoot the malfunction. He extended the landing gear by placing the gear lever in the "DOWN" position, and said he visually confirmed that they were down by the mirrors affixed to the wings, as the landing gear indicator lights in the cockpit were not illuminated due to the loss of electrical power. The pilot did not use the emergency gear extension system. With the landing gear appearing to be extended, the airplane touched down on the runway and the main landing gear collapsed. The airplane's loss of electrical power rendered the landing gear warning system inoperative; the warning system is designed to help prevent the pilot from inadvertently making a landing with the landing gear retracted. No evidence of any mechanical malfunction was found during the postimpact examination of the landing gear and alternator/battery electrical system. If the pilot had used the emergency gear extension system per the procedures prescribed in the pilot's operating handbook, it is probable that the landing gear would have extended and locked. The underlying cause of the electrical system failure could not be determined.
Probable Cause: The pilot's failure to perform the emergency landing gear extension procedure prior to landing. A contributing factor in the accident was the failure of the electrical system.
Accident investigation:
 |
|
Sources:
NTSB LAX07LA215
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Sep-2022 19:24 | ASN Update Bot | Added |
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