ASN Wikibase Occurrence # 361360
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| Date: | Saturday 4 September 1993 |
| Time: | 15:05 LT |
| Type: |  Piper PA-24-250 |
| Owner/operator: | Private |
| Registration: | N5523P |
| MSN: | 24-586 |
| Year of manufacture: | 1958 |
| Total airframe hrs: | 4145 hours |
| Engine model: | LYCOMING O-540-A1D5 |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Hesperia, CA -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | El Monte, CA (KEMT) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE AIRPORT IS LOCATED IN A BOWL SHAPED DEPRESSION AND IS SURROUNDED BY TREES ON ALL SIDES. THE PILOT SAID THAT HE WAS ON SHORT FINAL APPROACH WHEN THE AIRCRAFT ENCOUNTERED TURBULENCE AND A DOWNDRAFT. THE PILOT SAID THAT EVEN WITH THE APPLICATION OF FULL POWER HE WAS UNABLE TO ARREST THE DESCENT PRIOR TO THE LANDING GEAR COLLIDING WITH THE AIRPORT BOUNDARY FENCE. THE AIRCRAFT OWNER WAS ON BOARD AS A PASSENGER. THE OWNER AND THE SECOND PASSENGER STATED THAT ON FINAL APPROACH THE AIR WAS VERY TURBULENT, ESPECIALLY WHEN THE AIRCRAFT DESCENDED BELOW THE TOPS OF THE TREES WHICH SURROUND THE AIRPORT. THE AIRCRAFT OWNER STATED THAT HE THOUGHT THE AIRCRAFT ENCOUNTERED A LOW LEVEL WINDSHEAR CAUSED BY THE TREES. THE CLOSEST OFFICIAL WEATHER REPORTING STATION IS LOCATED 49 MILES NORTH WEST OF THE AIRPORT. AT THE TIME OF THE ACCIDENT, THE STATION WAS REPORTING WINDS FROM 240 DEGREES AT 18 KNOTS, WITH GUSTS TO 27 KNOTS.
Probable Cause: THE AIRCRAFT'S ENCOUNTER WITH A LOW LEVEL WINDSHEAR AND THE PILOT'S INADEQUATE COMPENSATION FOR THE EXISTING WIND CONDITIONS.
Accident investigation:
 |
|
Sources:
NTSB LAX93LA342
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 17:34 | ASN Update Bot | Added |
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