Service difficulty report · Brake · Dorner DO328300

Difficulty date
October 24, 2013
Submitted
September 14, 2015
Operation
General aviation
Make and model
Dorner DO328300
Aircraft time
8,439 hours
Engine
Pwa PW306B
Part
Brake
Part number
AHA22276
Condition
Failed
Location
Rt Mlg
Part time
6,317 hours
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) FOR THE SECOND TIME IN 20 MONTHS, A BRAKE UNIT, PN AHA2227-6 HAD TO BE REPLACED DUE TO ROTOR CLIP FAILURE. THE PROBLEMS WAS OBSERVED DURING BRAKE INSPECTION AFTER MAIN WHEEL CHANGE. BOTH BRAKE UNITS WERE MODIFIED IAW SB AHA2227-32-1304. THIS SB IS IMPLEMENTED TO IMPROVE THE ROTOR CLIP DESIGN DUE TO BRAKE ROTOR FAILURE.