NTSB Identification: ANC85IA083.
The docket is stored on NTSB microfiche number 27737.
Scheduled 14 CFR
Incident occurred Monday, May 13, 1985 in CAPE SIMPSON, AK
Aircraft: CESSNA 207A, registration: N9943M
Injuries: 7 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.

# 6 CYL EXPLODED IN FLT DUE TO CONNECTING ROD COMING APART. POST-ACCIDENT INSP REVEALED THAT NUT HAD BACK OFF DUE TO INADEQUATE TORQUE & NO COTTER KEY INSTALLED IN NUT.

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

ENGINE ASSEMBLY,CONNECTING ROD..DISCONNECTED

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

MAINTENANCE,MAJOR REPAIR..INATTENTIVE..OTHER MAINTENANCE PERSONNEL



Contributing Factors

IMPROPER USE OF PROCEDURE..OTHER MAINTENANCE PERSONNEL

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