SDR 95ZZZX5035

Service difficulty report · Bellcrank · Piper PA31T

Difficulty date
August 29, 1995
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N700LT
Make and model
Piper PA31T
Aircraft serial
31T7920046
Part
Bellcrank
Part number
4035700
Condition
Bearing Faulty
Location
Elevator
Part time
4,500 hours
Component
4070400
Stage of operation
IN
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

BEARINGS IN BELLCRANK ASSY, 40357-00, TIGHTENED UP, BUT NOT FROZEN COMPLETELY. BOLT THAT SECURES BELLCRANK TO BRACKETS, 40704-00, AND 40704-01, WAS ROTATING WITH BELLCRANK. ROTATION OF BOLT CAUSED NUT TO LOOSEN, ALLOWING BELLCRANK TO SHIFT, ROTATION OF BOLT ELONGATED BRACKETS' MOUNTING HOLES. BRACKETS MADE FROM ALUMINUM, SHOULD HAVE STEEL OR BRONZE BUSHINGS IN BOLT HOLES. NO INSPECTION REQUIREMENT IN MAINTENANCE. SCHEDULE TO LOOSEN CABLES AND CHECK BELLCRANK BEARINGS. REPLACED BRACKETS WITH NEW PARTS FROM APEX. REPLACED BEARINGS IN BELLCRANK.

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