- Date
- May 15, 1973
- Place
- W.Yellowstne, MT · W.YELLOWSTNE, MT
- Injuries
- 2 fatal
- Damage
- Destroyed
- Phase of flight
- Enroute
- Aircraft
- N9638LAmer Avco AA-1B
- Status
- Completed · report June 1, 1973
- Report
- Brief approved by the director
- FAA report
- 19730515012029A
- Case key
- 169521
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
NTSB brief
NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 3-0853 73/5/15 W.YELLOWSTNE,MONT AMER AVCO AA-1B CR- 1 0 0 MISCELLANEOUS PRIVATE, AGE 23, 300 TIME - 1000 N9638L PX- 1 0 0 FERRY TOTAL HOURS, 40 IN TYPE, DAMAGE-DESTROYED OT- 0 0 0 NOT INSTRUMENT RATED. NAME OF AIRPORT - WEST YELLOWSTONE DEPARTURE POINT INTENDED DESTINATION LAST ENROUTE STOP W.YELLOWSTNE,MONT LIVINGSTON,MONT UNKNOWN/NOT REPORTED TYPE OF ACCIDENT PHASE OF OPERATION STALL IN FLIGHT: CLIMB TO CRUISE PROBABLE CAUSE(S) PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED FACTOR(S) PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT WEATHER - HIGH DENSITY ALTITUDE WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT MISSING AIRCRAFT - LATER RECOVERED SKY CONDITION CEILING AT ACCIDENT SITE CLEAR UNLIMITED VISIBILITY AT ACCIDENT SITE PRECIPITATION AT ACCIDENT SITE 5 OR OVER(UNLIMITED) NONE OBSTRUCTIONS TO VISION AT ACCIDENT SITE TEMPERATURE-F NONE 63 WIND DIRECTION-DEGREES WIND VELOCITY-KNOTS 200 8 TYPE OF WEATHER CONDITIONS TYPE OF FLIGHT PLAN VFR NONE FIRE AFTER IMPACT REMARKS- RECOVERED 5/17/73. DENSITY ALT ABOUT 8500 FT.PLT BELIEVED UNFAMILIAR WITH MTN OPNS.
Aircraft
- Registration
- N9638L
- Reported as
- Amer Avco AA-1B
- Category
- Airplane
- Engine
- reciprocating
- Damage
- Destroyed
- Airport
- West Yellowstone
N9638LRegistration cancelled Jun 25, 1973 · Grumman American Avn. AA-1BAirframe modelGrumman American Avn. AA-1B
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.