NTSB Identification: MIA97IA160.
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Scheduled 14 CFR operation of GULFSTREAM INT'L AIRLINES
Incident occurred Friday, May 09, 1997 in MIAMI, FL
Probable Cause Approval Date: 09/30/1997
Aircraft: Short Brothers SD3-60, registration: N263GA
Injuries: 31 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 the initial climb after takeoff, an elevator trim cable failure occurred at a pulley at fuselage station 275. The flight remained airborne to burn fuel, then landed uneventfully. Metallurgical examination of the failed cable revealed that 42 of the 49 individual wires failed due to fatigue. The elevator trim cable segments were only required to be visually inspected every 4,800 hours or 48 months. The trim cable segments were last inspected 22 months earlier and had accumulated 2,456.9 hours and 2,290 cycles since inspection. The failed cable had accumulated a total time of 10,562.3 hours and 14,525 cycles at the time of the failure.

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

fatigue failure of a segment of the elevator trim cable system. A factor relating to the incident was: inadequate procedure for inspection of the cable system by the airplane manufacturer.

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