Service difficulty report · Seal · Dhav DHC8311

Difficulty date
November 26, 1999
Submitted
March 26, 2000
Operation
Air carrier
Make and model
Dhav DHC8311
Engine
Pwa PW123
Propeller
Hamstd 14SF15
System (JASC)
3242 · Brake
Part
Seal
Part number
68728
Condition
Leaking
Location
Brake Assy
Part time
402 hours
Component
Bfgoodrich · 21517
Stage of operation
IN
Nature of condition
K
Precautionary procedure
K

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

What was found

(CAN) BRAKE ASSY FOUND TO BE LEAKING WHILE PARKING BRAKE WAS APPLIED. THE CAUSE OF THE LEAK WAS DETERMINED TO BE A DEFECTIVE BACK-UP RING ON ONE OF THE BRAKE PISTONS WHICH WAS FOLDED OVER THE PISTON.