Service difficulty report · Coupling · Bell 206B

Difficulty date
July 2, 2003
Submitted
August 18, 2003
Operation
General aviation
Make and model
Bell 206B
Aircraft time
13,352 hours
Part
Coupling
Part number
327211
Condition
Failed
Location
T/R Driveshaft
Stage of operation
IN
How discovered
9
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

(CAN) ON DAILY INSPECTION OF AIRCRAFT FORWARD THOMAS COUPLING ATTACHMENT BOLT FOUND LOOSE. FORWARD T/R DRIVESHAFT REMOVED AND DISASSEMBLED. FORWARD DISC PACK (THOMAS COUPLING) SCRAPPED DUE TO FRETTING DAMAGE AS WELL AS ATTACHING BOLT. ALL HARDWARE INSPECTED FOR SERVICE ABLILITY. ALL HARDWARE FOUND NOT TORQUE SEALED AS PER BHT TORQUE CHECK PROCEDURE. 10- 25 HR TORQUE CHECK TO BE COMPLETED AS PER BHT MM TO INSURE BOLT TORQUE. MORE DETAILED DAILY INSPECTION SHOULD BE COMPLETED. PROPER MAINTENANCE PROCEDURES SHOULD BE FOLLOWED.

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