Service difficulty report · Magneto · Cessna 172R

Difficulty date
May 5, 2012
Submitted
September 14, 2015
Operation
General aviation
Make and model
Cessna 172R
Aircraft time
1,680 hours
Engine
Lyc IO360L2A
Propeller
Mcauly 1A170E
Part
Magneto
Part number
4371
Condition
No Test
Location
Engine
Part time
31 hours
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) DURING PRE-FLIGHT RUN-UP LT MAGNETO FAILED MAG DROP TEST. MAGNETO INTERNAL TIMING FOUND TO BE OFF BY 7 DEGREES. MAGNETO REPLACED.

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