Accident Sequence
The pilot reported that during takeoff, the right engine lost power as the aircraft was climbing through approximately 50 feet above ground level. The pilot elected to shut down both engines and abort the takeoff by landing with the gear retracted. The aircraft skidded off the right side of the runway.
Examination Findings
An examination of the right engine revealed heavy sooting of the spark plugs and exhaust system. When the right engine was restarted after the accident, it initially ran rough, appeared to have a rich mixture, and black smoke came from the exhaust. Evidence of excessive fuel pressure was noted. The fuel injector pump was changed, after which the engine ran normally. An inspection of the removed pump revealed that the low pressure adjustment bolt could be rotated with fingers. Disassembly of the pump disclosed that the internal lock nut was worn and unserviceable.
Maintenance History
Maintenance records showed that engine problems had been reported on previous flights. On June 21, 1989, the right engine turbocontroller and fuel pump were adjusted for both high and low pressures. Procedures at the maintenance facility for turbocharged engines were not in accordance with Teledyne Continental Service Bulletin M89-10.