LEXINGTON, NC, USA
N55KP
BEECH V35B
THE AIRPLANE ENCOUNTERED ROUGH TERRAIN AND IMPACTED TREES DURING A FORCED LANDING ATTEMPT IN A FIELD. THE PLT REPORTED THAT THE ENGINE HAD LOST PWR AT 8,500 FT MSL. POST-ACCIDENT EXAM OF THE ENGINE REVEALED THAT THE #1 CYL BARREL HAD CRACKED AND SEPARATED NEAR THE CYL HEAD. METALLURGICAL EXAM OF THE BARREL REVEALED THAT IT WAS NOT MANUFACTURED ACCORDING TO THE MFR'S SPECS. FAA AD 86-13-04 APPLIED TO THIS ENGINE AND CYL BARREL, AND HAD BEEN COMPLIED WITH 41 HOURS PRIOR TO THE CYL FAILURE. THE AD REQUIRED RECURRING VISUAL EXAM AND PRESSURE CKS FOR CRACKS EVERY 50 HOURS UNTIL 440-490 HRS TOTAL OPERATING TIME (TT). THE ENGINE HAD BEEN REBUILT BY THE MFR IN FEB 86, AND HAD 214 HRS TT AT THE TIME OF THE ACCIDENT.
Source: NTSB Aviation Accident Database
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