Service difficulty report · Pump · Boeing 757351

Difficulty date
February 10, 2024
Submitted
February 12, 2024
Operation
Air carrier
Aircraft
N595NW
Make and model
Boeing 757351
Aircraft serial
32995
Aircraft time
70,542 hours, 23,047 cycles
Part
Pump
Part number
5007436C
Part serial
0584
Condition
Leaking
Location
Scavange Sys
Part time
89,602 hours, 36,186 cycles
Stage of operation
IN
How discovered
O
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

SHIP 5815 ENVIROMENTAL CONTROL SYSTEM SMELLS IN COCKPIT & FWD CABIN. SMELLS LIKE A COELESCER SOCKS NEEDS CHANGING. CORRECTIVE ACTION: REPLACED RECIRC FILTERS PER B757 AMM 21-25-01. REPLACED #2 ENG MAIN OIL PUMP AND GBX SCAVANGE PUMP AND C/W TASK 71-05-00-815-811-P00, REF LP 8496561, PERFORMED HIGH POWER ENGINE RUN, TEST FAILED. REPLACED #2 ENG MAIL OIL PUMP PER B757 AMM 72-61-08, PERFORMED LEAK AND OPS CHECK AND HIGH POWER RUN PER B757 AMM 71-00-00 OIL PRESSURE TEST WITHIN LIMITS AND NO LEAKS FOUND. (8496559)