Service difficulty report · Apu · Boeing 737890

Difficulty date
July 18, 2011
Submitted
July 22, 2011
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
19,369 hours, 5,752 cycles
Part
Apu
Part number
38007021
Part serial
P7212
Condition
Faulty
Location
Apu Bay
Part time
9,670 hours, 8,269 cycles
Stage of operation
CL
How discovered
O
Nature of condition
K, B
Precautionary procedure
K

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

What was found

ON CLIMB AND DESCENT NOTICED A STRONG "DIRTY SOCK" SMELL IN THE COCKPIT. FOUND OIL IN APU LOAD COMPRESSOR DRAIN CAVITY. REPLACED APU PER TASK CARD 78349010. DURING OPS CHECK FOUND BLEED AIR DUCT LEAKING. REPLACED DUCT. LEAK CHECK GOOD & COMPLETED AMM REF 49 11 00 400 802 PG 10 ITEM 5 (A D). COMPLETED LEAK & OPS CHECK PER AMM 49 11 00 710 801.