NTSB Identification: MIA88IA230.
The docket is stored on NTSB microfiche number 38168.
Incident occurred Thursday, July 21, 1988 in TAMPA, FL
Probable Cause Approval Date: 01/25/1990
Aircraft: PIPER PA-34-200T, registration: N47506
Injuries: 1 Uninjured.

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

SHORTLY AFTER DEPG, THE PLT ELECTED TO RTRN TO THE ARPT FOR PAPERWORK HE HAD FORGOTTEN. HE RPRTD THE APCH & TOUCHDOWN WERE NORMAL, BUT DRG THE LNDG ROLL, THE LEFT MAIN GEAR COLLAPSED. SUBSEQUENTLY, THE ACFT VEERED OFF THE RWY & HIT A RWY LGT BEFORE STOPPING. AN EXAM OF THE LEFT GEAR REVEALED THE LEFT MAIN LNDG GEAR TRUNNION HAD FAILED NR THE FILLET WEB DUE TO FATIGUE. THE TRUNNION HAD BEEN IN SVC FOR 1255 HRS OF OPN. PIPER SVC BULLETIN #787A, DATED 8/15/85, RECOMMENDED THAT AFTER 1000 HRS OF SVC, THE TRUNNIONS BE INSPECTED AT INTERVALS NOT TO EXCEED 100 HRS OF OPN UNTIL REPLACED. INSPECTIONS WERE TO BE MADE WITH A 10 POWER MAGNIFYING GLASS AFTER PAINT & DIRT WERE REMOVED. THE TRUNNION HAD BEEN INSPECTED AT 55 FLT HRS BEFORE THE ACDNT, BUT RPRTDLY, THE OPERATOR FAILED TO PROPERLY REMOVE THE PAINT & DIRT BEFORE THE INSPECTION.

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

LANDING GEAR,MAIN GEAR STRUT..FATIGUE





Contributing Factors

MAINTENANCE,SERVICE BULLETIN/LETTER..NOT FOLLOWED..COMPANY MAINTENANCE PERSONNEL

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