Service difficulty report · Magneto · Piper PA44180

Difficulty date
February 11, 2025
Submitted
February 14, 2025
Operation
General aviation
Aircraft
N834AT
Make and model
Piper PA44180
Aircraft serial
4496314
Aircraft time
5,319 hours
Engine
Lyc LO360A1H6
Engine time
2,245 hours
Part
Magneto
Part number
4302
Part serial
22110885
Condition
Contaminated
Part time
256 hours
Component
Rotor Shaft · Champion
Component part number
M3513
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.

What was found

THE MAGNETO ROTOR SHEARED, THE MAGNETO DROPS DURING A CHECK WERE FOUND TO BE VERY HIGH. WHEN THE MAGNETO WAS REMOVED FROM THE ENGINE IT WAS FOUND THAT THE ROTOR SHAFT HAD COMPLETELY SHEARED.

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