NTSB Identification: ATL82IA051
14 CFR Part 91: General Aviation
Incident occurred Tuesday, February 09, 1982 in BIRMINGHAM, AL
Probable Cause Approval Date: 02/09/1983
Aircraft: BEECH 200, registration: N205SG
Injuries: 10 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.

WHILE CLIMBING THRU 500 FT AGL ON TAKEOFF, THE MANUAL PITCH TRIM STRUCK AT 1 OR 2 UNITS NOSE UP. USE OF THE THREE TRIM DISCONNECT SWITCHES DID NOT REMEDY THE PROBLEM. ABOUT 30 SECS LATER, THE PITCH TRIM RAN AWAY NOSE UP AND WOULD NOT STOP UNTIL THE PITCH TRIM CIRCUIT BREAKER WAS PULLED. MANUAL TRIM REMAINED INOP. THE PROBLEM CLEARED UP 2 OR 3 MINS LATER. SUBSEQUENT INVESTIGATION DISCLOSED EVIDENCE OF THE MANUAL PITCH TRIM CHAIN BINDING ON A STRINGER IN THE PEDESTAL. NO OTHER MALFUNCTIONS WERE IDENTIFIED. THE AIRCRAFT HAD A HISTORY OF MALFUNCTIONING MANUAL PITCH TRIM.

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

FLT CONTROL SYST,ELEVATOR TRIM/TAB CONTROL..UNDETERMINED


Contributing Factors

FLT CONTROL SYST,ELEVATOR TRIM/TAB CONTROL..BINDING(MECHANICAL)

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