What was found
ROUGH GRIND FINISH CAUSED ALMOST ALL 8 ROCKER ARM BUSHINGS TO WEAR AND CONTAMINATE OIL WITH BRASS, METAL PARTICLES. BUSHINGS AND ROCKER SHAFTS WERE DEFECTIVE FROM WEAR AND WERE REPLACED.
- Difficulty date
- January 26, 2001
- Submitted
- March 1, 2001
- Operation
- General aviation
- Aircraft
- N70847
- Make and model
- Cessna 177A
- Aircraft serial
- 17701356
- Engine
- Lyc O360*
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Shaft
- Part number
- SL13790A
- Condition
- Damaged
- Location
- Engine Rockers
- Part time
- 123 hours
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.