ASN Wikibase Occurrence # 40606
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| Date: | Monday 13 February 1984 |
| Time: | 14:30 |
| Type: | Maupin Woodstock One |
| Owner/operator: | private |
| Registration: | N71W |
| MSN: | 1 |
| Total airframe hrs: | 317 hours |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | California City, CA -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | California City, CA (L71) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING FLT, THE GLIDER SUSTAINED AN IN-FLT FAILURE OF BOTH WINGS, THEN ENTERED AN UNCONTROLLED DESCENT & CRASHED. AN EXAM OF THE WRECKAGE REVEALED NO PREEXISTING STRUCTURAL PROBLEMS. THE GLIDER WAS EQUIPPED WITH A RECORDING BAROGRAPH. A BAROGRAPH TRACE SHOWED THAT THE GLIDER HAD BEEN AIRBORNE ABOUT 45 MIN & HAD STEP CLIMBED TO 16,500 FT. DURING THE LAST 5 MIN IT HAD DESCENDED 500 FT & CLIMBED 250 FT, THEN ENTERED A RAPID DESCENT (STRAIGHT LINE ON THE RECORDING) & CRASHED. OTHER GLIDER PLTS REPORTED THAT N71W WAS FLYING IN THE VICINITY OF LENTICULAR CLOUDS WITH BASES BETWEEN 14,000 & 18,000 FT. THEY REPORTED 'MILD WAVE CONDITIONS' WITH NO UNUSUALLY STRONG ROTOR. ONE PLT NOTED A PHENOMENON OF 'LENTICULAR JUMP', IN WHICH, THE CLOUD COULD GROW FASTER THAN A GLIDER COULD MOVE AWAY. N17W WAS NOT EQUIPPED FOR INSTRUMENT FLT & DID NOT HAVE AN OXYGEN SYS INSTALLED. THE PLT WAS DIABETIC, BUT A FLT SURGEON'S FINDINGS CONCERNING HIS MEDICAL CONDITION AT THE TIME OF THE ACCIDENT WERE INCONCLUSIVE. CAUSE:
Sources:
NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001214X38800
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
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