What was found
THIS CRANKSHAFT WAS LAST INSPECTED AND PID COATED AT THE FACTORY APRIL 23, 2002, YET 6 YEARS AND 2196 HOURS LATER, IT WAS PITTED, AND REQURIED FURTHER MACHINING. THE PID COATING DOES NOT SEEM TO HOLD UP, OR BLOCK THE CORROSION. (K)
- Difficulty date
- February 21, 2007
- Submitted
- March 6, 2007
- Operation
- General aviation
- Aircraft
- N982BT
- Make and model
- Cessna 172R
- Aircraft serial
- 17280307
- Engine
- Lyc IO360L2A
- System (JASC)
- 8520 · Reciprocating Engine Power Section
- Part
- Crankshaft
- Part number
- V53793493
- Condition
- Corroded
- Location
- Engine
- Part time
- 4,744 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.