NTSB Identification: SEA89LA171.
The docket is stored on NTSB microfiche number 40875.
Accident occurred Monday, September 11, 1989 in RENO, NV
Probable Cause Approval Date: 06/22/1992
Aircraft: YAKOVLEV YAK 11, registration: N134JK
Injuries: 1 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

SHORTLY AFTER TAKE-OFF, THE PILOT NOTED THAT THE CYLINDER HEAD TEMPERATURE AND THE OIL TEMPERATURE WERE NEAR REDLINE. THE PILOT REDUCED POWER AND NOTED THAT THE MANIFOLD PRESSURE WAS BELOW NORMAL. THE PILOT TURNED BACK TO THE RUNWAY AND WAS ABLE TO EXTEND THE LEFT MAIN LANDING GEAR AND THE TAIL WHEEL ONLY. THE AIRPLANE LANDED ON THE RUNWAY WITH POWER AT IDLE. THE AIRPLANE SLIDE OFF THE RUNWAY AND BROKE APART AS IT SLID TO A STOP ON THE ROUGH TERRAIN. THE AIRPLANE WAS TO PARTICIPATE IN AN AIR RACE AND WAS TEST RUNNING THE ENGINE PRIOR TO THE START. THE ENGINE HAD BEEN MODIFIED FOR THE PURPOSE OF AIR RACING.

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

THE RIGHT MAIN LANDING GEAR DID NOT FULLY EXTEND FOR AN UNDETERMINED REASON. FACTORS THAT CONTRIBUTED TO THE ACCIDENT WERE: AN ENGINE POWER LOSS FOR UNKNOWN REASONS AND THE ROUGH TERRAIN.

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