Service difficulty report · Impulse Coupling · Piper PA32301

Difficulty date
April 11, 2016
Submitted
April 11, 2016
Operation
Air carrier
Aircraft
N428S
Make and model
Piper PA32301
Aircraft serial
328106021
Aircraft time
14,468 hours, 10,000 cycles
Engine
Lyc IO540K1G5
Engine time
2,395 hours, 502 cycles
Part
Impulse Coupling
Part number
M3333
Part serial
NA
Condition
Defective
Location
Magneto
Part time
244 hours
Component
Magneto · Slick · 6351
Component part number
6351
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

REMOVED MAGNETO MODEL 6351 FOR THE 250 HOUR IMPULSE INSPECTION REQUIRED BY AD 99-04-04. THE MAGNETO IMPULSE COUPLING FAILED THE INSPECTION SO WE INSTALLED A SERVICEABLE IMPULSE COUPLING. THE MAGNETO HAD 198.8 HOURS SINCE NEW. 16 HOURS LATER THE MAGNETO MODEL 6351, SN 14110907 WAS HARD STARTING AND REPLACED WITH A NEW MAGNETO MODEL 6351, SN 15080112. MAGNETO MODEL 6351 WAS REMOVED FOR SCHEDULED 250 HOUR AND HAD BECOME HARD STARTING SO I REQUESTED THE 250 IMPULSE INSPECTION AND ALSO THE 500 HR INSPECTION. THIS MAGNETO IMPULSE COUPLING ALSO FAILED THE INSPECTION HAVING LOOSE RIVETS. THIS MAGNETO HAS 244.4 HOURS SINCE NEW.

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