What was found
(CAN) ENGINE WAS HARD TO START WHEN HOT. FOUND IMPULSE COUPLING FIRING OFF 9-10 DEGREES AFTER TDC WHEN IT SHOULD BE CLOSER TO TDC. DIDN`T MAKE IT TO THE INITIAL 500 HOUR INSPECTION BEFORE INTERNAL MAGNETO TIMING REQUIRES ADJUSTMENT.
- Difficulty date
- December 12, 2014
- Submitted
- March 12, 2015
- Operation
- General aviation
- Make and model
- Cessna 172S
- Aircraft time
- 3,128 hours
- Engine
- Lyc IO360L2A
- System (JASC)
- 7414 · Magneto/Distributor
- Part
- Impulse Coupling
- Condition
- Out Of Tolerance
- Location
- Magneto
- Part time
- 470 hours
- Component
- Magneto · Champion
- Component part number
- 4371
- 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.