NTSB Identification: ANC83IA150.
The docket is stored on NTSB microfiche number 21836.
Incident occurred Friday, August 19, 1983 in ANCHORAGE, AK
Aircraft: PIPER PA-31-350, registration: N200VF
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.

DURING TAKEOFF AT KODIAK, AK, THE WHEEL & LOWER SHAFT OF THE LEFT STRUT ASSY SEPARATED FROM THE ACFT. THE PLT STATED THAT WHEN HE WAS RETRACTING THE GEAR, HE FELT A BUMP & GOT AN UNSAFE GEAR LIGHT. HE IMMEDITAELY EXTENDED THE GEAR & FLEW BY THE TOWER & WAS INFORMED THAT THE LEFT GEAR APPEARED TO BE MISSING. THE PLT THEN FLEW TO ANCHORAGE WHERE HE COULD LAND ON A FOAMED RWY. HE WAS UNABLE TO RETRACT THE GEAR. BEFORE LANDING, HE SHUT DOWN & SECURED THE LEFT ENG. THE LEFT WING RECEIVED MINOR DAMAGE DURING THE LANDING. AN EXAM OF THE TOP MAIN GEAR BEARING REVEALED THAT 2 OF 4 RETAINING PINS, PN 01821-06, WERE MISSING & THE OTHER 2 WERE SHEARED OFF. AN EXAM OF THE RIGHT MAIN GEAR RETAINING PINS REVEALED THAT 2 HAD CRACKS IN THE NECK REGION. EARLIER ON THE SAME DAY OF THE INCIDENT, THE ACFT HAD AN UNSAFE GEAR INDICATION. MAINTENANCE PERSONNEL HAD INSPECTED, REMOVED, CLEANED, GREASED & REINSTALLED ALL ACTUATING RODS & HAD ADJUSTED THE LEFT GEAR UPLOCK. THE ACFT WAS THEN RELEASED FOR A TEST FLT, ON WHICH, THE INCIDENT OCCURRED.

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

LANDING GEAR,MAIN GEAR..FAILURE,TOTAL

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