ASN Wikibase Occurrence # 386021
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| Date: | Wednesday 18 April 2001 |
| Time: | 13:30 LT |
| Type: |  Cessna 172B |
| Owner/operator: | Private |
| Registration: | N4672L |
| MSN: | 17254667 |
| Year of manufacture: | 1966 |
| Total airframe hrs: | 2614 hours |
| Engine model: | Continental O-300-D |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Lancaster, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Camarillo Airport, CA (KCMA) |
| Rosamond, CA (KLOO) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot attempted to climb the airplane into rising terrain in a box canyon. Surface wind at 18 knots with gusts to 24 knots formed a downdraft on the lee side of a ridge forming one side of the canyon. The density altiude was 5,000 feet. The pilot reported the aircraft "experienced involuntary descent" and despite full engine power the aircraft was "unable to gain/maintain altiude resulting in [a] forced landing." He also reported he "put in a little flap to keep from settling." No mechanical anomalies were found with the airplane.
Probable Cause: The pilot's delay reversing course while flying toward rising terrain in a box canyon. Factors in the accident included a downdraft on the lee side of a ridge forming the box canyon, high density altitude, and the pilot's improper use of flaps.
Accident investigation:
 |
|
Sources:
NTSB LAX01LA149
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Apr-2024 10:21 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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