NTSB Identification: DEN86FA149.
The docket is stored on NTSB microfiche number 31605.
Accident occurred Wednesday, June 04, 1986 in CHEYENNE, WY
Aircraft: AMERICAN AA-1 YANKEE, registration: N5935L
Injuries: 1 Serious,1 Minor.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

DURING TAKEOFF ON A 4,997 FOOT LONG RWY, THE ACFT BECAME AIRBORNE, SETTLED BACK ONTO THE RWY AND LIFTED OFF AGAIN JUST PRIOR TO REACHING THE END OF THE RWY. AFTER TAKEOFF THE PLT WAS NOT ABLE TO MAINTAIN FLT. THE ACFT IMPACTED ON A STREET, TRAVELED 30 FEET, STRUCK A WOODEN FENCE AND CAME TO REST AGAINST A TREE ON THE FRONT LAWN OF A PRIVATE RESIDENCE. MOST OF THE PLT'S FLT EXPERIENCE WAS IN AREAS WITH ELEVATIONS NEAR SEA LEVEL. HE STATED HE WAS NOT AWARE THE MIXTURE SHOULD BE LEANED DURING TAKEOFF FROM HIGH ALT ARPTS AS THE ACFT OWNER MANUAL SUGGESTS. CHEYENNE ARPT ELEVATION IS 6,150 FT MSL. THE ACFT WAS ALSO DETERMINED TO HAVE BEEN 35 LBS OVER MAX GROSS WEIGHT AT TAKEOFF.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

MIXTURE..IMPROPER..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

AIRCRAFT WEIGHT AND BALANCE..EXCEEDED..PILOT IN COMMAND


Contributing Factors

LACK OF FAMILIARITY WITH AIRCRAFT..PILOT IN COMMAND


Contributing Factors

LACK OF FAMILIARITY WITH GEOGRAPHIC AREA..PILOT IN COMMAND

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