What was found
MAGNETO WAS REMOVED AFTER ENGINE OVERSPEED, DURING TEARDOWN FOR OVERHAUL REVEALED TACH HARNESS LEADS HAD CHAFED THRU THE OPPOSIT PIN ON THE TACH POINTS.
- Difficulty date
- July 22, 2009
- Submitted
- October 23, 2009
- Operation
- General aviation
- Make and model
- Robsin R44RAVENII
- Aircraft time
- 1,352 hours
- Engine
- Lyc IO540AE1A5
- System (JASC)
- 7497 · Ignition System Wiring
- Part
- Wire Harness
- Condition
- Chafed
- Location
- Magneto
- Component
- Magneto · 10600646201
- Component part number
- E05EA102
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.