Service difficulty report · Engine · Bell 407

Difficulty date
November 9, 2016
Submitted
November 15, 2016
Operation
Air carrier
Aircraft
N192AM
Make and model
Bell 407
Aircraft serial
54048
Aircraft time
1,836 hours, 6,250 cycles
Engine
Allsn 250C47B
Engine time
1,836 hours, 2,908 cycles
Part
Engine
Condition
Making Metal
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
E

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

What was found

EXCESSIVE CHIPS ON UPPER AND LOWER ENGINE CHIP PLUGS, CHIP LIGHT ILLUMINATED AFTER ENGINE START BUT BEFORE TAKE OFF. ENGINE WAS SHUT DOWN BY PILOT, MECHANIC WAS CALLED AND DETERMINED THERE WAS ENOUGH MATERIAL ON THE PLUG TO REQUIRE ENGINE CHANGE BY THE SPECIFICATIONS IN THE MM.

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