What was found
THE MAGNETO WAS REMOVED FROM SERVICE FOR THE 500HR INSPECTION. THE RIVETS RETAINING THE IMPULSE COUPLING PAWLS WERE FOUND TO BE LOOSE. ABLE TO ROTATE THE RIVETS. FAILURE OF THE RIVETS COULD CAUSE TOTAL ENGINE FAILURE.
- Difficulty date
- November 9, 2017
- Submitted
- November 9, 2017
- Operation
- General aviation
- Make and model
- Cessna 172S
- Engine
- Lyc IO360L2A
- System (JASC)
- 7414 · Magneto/Distributor
- Part
- Rivet
- Condition
- Loose
- Location
- Inpulse Coupling
- Part time
- 847 hours
- Component
- Magneto · Champion
- Component part number
- 4371
- 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.