What was found
(CAN) PISTON BROKE IN THREADED PORTION, OUTSIDE OF MASTER CYLINDER, IMMEDIATELY BELOW JAM NUT. NO EVIDENCE OF FRETTING THAT WOULD INDICATE AN EARLIER PARTIAL BREAK.
- Difficulty date
- October 6, 2004
- Submitted
- November 2, 2004
- Operation
- General aviation
- Make and model
- Cessna 172P
- Aircraft time
- 10,189 hours
- Engine
- Lyc O320D2J
- Propeller
- Mcauly 1C160DTM
- System (JASC)
- 3243 · Master Cylinder/Brake Valve
- Part
- Piston
- Part number
- 98820125
- Condition
- Broken
- Location
- Master Cylinder
- Part time
- 10,460 hours
- Component
- Master Cylinder
- Component part number
- 98820104
- 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.