ASN Wikibase Occurrence # 286462
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| Date: | Wednesday 21 October 2009 |
| Time: | 09:15 LT |
| Type: |  Rockwell Aero Commander 690 |
| Owner/operator: | Kolob Canyons Air Services L L C |
| Registration: | N690TR |
| MSN: | 11034 |
| Year of manufacture: | 1972 |
| Total airframe hrs: | 8065 hours |
| Engine model: | Garret TPE 331-5 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Cedar City, Utah -
 United States of America
|
| Phase: | Standing |
| Nature: | Ferry/positioning |
| Departure airport: | Cedar City Airport, UT (CDC/KCDC) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Upon arrival over the destination airport during a positioning flight, the pilot attempted to extend the airplane's landing gear. Only the nose gear and the left main landing gear locked in the down position. The pilot reported that he performed the emergency gear extension procedure specified in the airplane's flight manual, but the right main gear did not lock down. The pilot returned to the departure airport and landed. During rollout, the right main landing gear collapsed and the airplane slid off the runway resulting in substantial airframe damage. An examination of the airplane revealed that an accumulator/regulator in the extension system had malfunctioned. In addition, an incorrect priority valve was installed and precluded the gear from locking down.
Probable Cause: The failure of the landing gear accumulator/regulator and the installation of the improper priority valve, which precluded the landing gear from extending and locking into place.
Accident investigation:
 |
|
Sources:
NTSB WPR10LA034
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Oct-2022 11:11 | ASN Update Bot | Added |
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