SDR 97ZZZX3328

Service difficulty report · Magneto · Cessna 172N

Difficulty date
December 11, 1995
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N5855E
Make and model
Cessna 172N
Aircraft serial
17271946
Engine
Lyc O320H2AD
Part
Magneto
Part number
D4RN2021
Condition
Teeth Stripped
Location
Distributor Gear
Stage of operation
IN
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

TEETH ON DISTRIBUTOR GEAR WERE SHEARED CAUSING A VERY SEVERE MAG DROP ON RIGHT MAGNETO SIDE. A MAGNETO LOCKING TOOL WAS NOT USED DURING INSTALLATIONS AFTER AD CHECKS. THIS IS A SINGLE POINT DUAL MAGNETO.

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