ASN Wikibase Occurrence # 35043
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| Date: | Friday 20 September 1991 |
| Time: | 23:34 LT |
| Type: |  Piper PA-28-181 |
| Owner/operator: | Golden Gate Aviation |
| Registration: | N8272Y |
| MSN: | 28-8190045 |
| Engine model: | Lycoming O-360-A4M |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Cupertino, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Bakersfield, CA (KBFL) |
| San Carlos, CA (KSQL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE 229-HOUR INSTRUMENT RATED PRIVATE PILOT DEPARTED BAKERSFIELD FOR A FLIGHT HOME DURING BRIGHT NIGHTIME VFR CONDITIONS. APPROACHING HIS DESTINATION AIRPORT, SAN CARLOS, THE PILOT CONTACTED NAS MOFFETT AND RECEIVED PERMISSION TO TRANSIT ITS AIRSPACE. THE PILOT WAS TOLD TO REPORT OVER THE AIRPORT. AS THE PILOT APPROACHED THE AIRPORT HE LIKELY ENCOUNTERED A FORECAST OVERCAST LAYER OF CLOUDS HAVING BASES AT 1,000 FEET. THE PILOT MADE A 60 TO 70 DEGREE CHANGE OF COURSE AWAY FROM NAS MOFFETT AND PROBABLY ATTEMPTED TO FLY BENEATH THE CLOUDS WHILE OVER THE DENSELY POPULATED AND ILLUMINATED AREAS OF THE CITY. THE PILOT ENTERED THE BASE OF THE CLOUDS, CONTINUED FLYING UNTIL ENTERING A MOUNTAINOUS AREA AND LOST VISUAL REFERENCE TO THE CITY. SECONDS BEFORE IMPACT THE PILOT REQUESTED THE FREQUENCY FOR A NEARBY RADAR FACILITY. THE PILOT WAS FAMILIAR WITH THE AREA HAVING RECENTLY LEARNED TO FLY IN THE VICINITY.
Probable Cause: THE PILOT'S FAILURE TO MAINTAIN THE PROPER ALTITUDE, HIS IMPROPER INFLIGHT DECISION TO ATTEMPT FLIGHT BELOW THE BASE OF AN OVERCAST LAYER OF CLOUDS TOWARD RISING MOUNTAINOUS TERRAIN AND THE FLIGHT'S INADVERTENT ENTRY INTO INSTRUMENT METEOROLOGICAL CONDITIONS. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT WERE THE PILOT'S MISJUDGED WEATHER EVALUATION AND HIS IMPROPER VFR PROCEDURES.
Accident investigation:
 |
|
Sources:
NTSB LAX91FA399
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 11-Apr-2024 12:07 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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