Service difficulty report · Apu · Boeing 777323ER

Difficulty date
December 10, 2021
Submitted
December 23, 2021
Operation
Air carrier
Aircraft
N725AN
Make and model
Boeing 777323ER
Aircraft serial
41666
Aircraft time
33,966 hours, 3,894 cycles
Part
Apu
Part number
351W30004
Part serial
1344
Condition
Odor
Location
Aft
Part time
41,461 hours, 7,998 cycles
Stage of operation
CL
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

AIRCRAFT WAS GROUNDED: DIRTY SOCK ODOR IN COCKPIT AT LOW ALTITUDE. REPLACED APU WITH SERVICEABLE UNIT IAW WORKCARD 72L31049008, OPS CHECK GOOD.