What was found
(CAN) DURING INSPECTION, MAINTENANCE NOTICED A FLUID LEAK FROM THE NR 1 BRAKE ASSEMBLY. TEAR-DOWN OF THE BRAKE ASSEMBLY REVEALED A PISTON SEAL BACK-UP RING FOLDED OVER THE PISTON WHICH CAUSED THE O-RING TO FAIL.
- Difficulty date
- September 12, 1999
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Make and model
- Dhav DHC8102
- Engine
- Pwa PW120A
- Propeller
- Hamstd 14SF7
- System (JASC)
- 3242 · Brake
- Part
- Seal
- Part number
- 68728
- Condition
- Failed
- Location
- Brake Assy
- Part time
- 1,349 hours
- Component
- Bfgoodrich · 214664
- 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.