Service difficulty report · Bolt · Bac 146200A

Difficulty date
February 21, 2005
Submitted
June 2, 2005
Operation
General aviation
Make and model
Bac 146200A
Aircraft time
38,712 hours
Engine
Lyc ALF502R5
Part
Bolt
Part number
LWB9227H24
Condition
Broken
Location
Brake Assy
Part time
11,487 hours
Component
Brake Assy · Dunlop
Component part number
AHA2175
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

BRAKE UNIT ON WING FOUND WORN TO LIMITS, UNIT REMOVED FOR OVERHAUL, THE ASSEMBLY SENT TO THE WHEEL AND BRAKE SHOP FOR TEAR DOWN, INSPECTION TASK 32420-RAI-10000-2 AS PER IN HOUSE FORM SSF030 WAS DONE, THE ENGINEER FOUND THE HEAD OF A BOLT SHEARED OFF OF ONE OF THE BOLTS BETWEEN THE TORQ PLATE AND TORQ TUBE ASSY. THE BOLT HEAD HELD IN PLACE BY THE LOCK WIRE THE SHANK IS A CLOSE TOLORANCE BOLT SO IT WAS STILL IN PLACE. CMM REFERENCE 32-44-44 FIG #1 ITEM 860. ALT PART# DSR4291-1411.