What was found
DURING SCHEDULED OVERHAUL, THIS CRANKSHAFT WAS FOUND PITTED IN THE INNER BORE. THIS ENGINE WAS A FACTORY OVERHAUL JULY 2002, AND DID HAVE THE PID COATING. THE COATING DOES NOT SEEM TO BLOCK THE CORROSION. (K)
- Difficulty date
- February 23, 2007
- Submitted
- March 6, 2007
- Operation
- General aviation
- Aircraft
- N988BC
- Make and model
- Cessna 172R
- Aircraft serial
- 17280472
- Engine
- Lyc IO360L2A
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Crankshaft
- Part number
- V537925914
- Condition
- Corroded
- Location
- Engine
- Part time
- 4,170 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.