Service difficulty report · Pinion Gear · Boeing 7878

Difficulty date
December 3, 2023
Submitted
December 12, 2023
Operation
Air carrier
Aircraft
N800AN
Make and model
Boeing 7878
Aircraft serial
40618
Aircraft time
32,398 hours, 5,024 cycles
Part
Pinion Gear
Part number
UNKNOWN
Condition
Corroded
Location
Zone 500 - Lh Wi
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

AIRCRAFT IN BASE MAINTENANCE: LEFT HAND WING SLAT NUMBER 5 OUTBOARD PINION GEAR HAS CORROSION. INSTALLED NEW PINION GEAR PER NON-ROUTINE 6338220A.

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