Service difficulty report · Brake · Boeing 7378BK

Difficulty date
July 10, 2012
Submitted
September 14, 2015
Operation
General aviation
Make and model
Boeing 7378BK
Engine
Cfmint CFM567B26US
Part
Brake
Part number
GA31993
Condition
Damaged
Location
Mlg
Part time
1,403 hours
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

(CAN) DURING BRAKE REMOVAL, FOUND THE WHEEL HARD TO REMOVE. HAD TO FORCE THE WHEEL OFF THE BRAKE UNIT. UPON INSPECTION, FOUND NR 2 ROTOR DAMAGED AT SEVERAL POSITIONS AROUND THE ROTOR DRIVE KEY SLOTS. THE CLIPS THAT ARE FITTED TO TRANSFER THE TORQUE, DRIVE KEY INSERTS IN ROTOR, FOUND CRACKED AND THE ATTACHING RIVETS DAMAGED AND PULLED. SEVERAL OTHER ROTORS HAD THE CLIPS EITHER CRACKED OR THE ATTACHING RIVETS PULLED. THE BRAKE UNIT REPLACED AND SENT FOR O/H.

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