Service difficulty report · Pump · Boeing 737924ER

Difficulty date
November 11, 2025
Submitted
November 13, 2025
Operation
Air carrier
Aircraft
N38467
Make and model
Boeing 737924ER
Aircraft serial
33537
Aircraft time
39,753 hours, 14,407 cycles
Engine
Cfmint CFM567B262
Part
Pump
Part number
41F1005
Part serial
YT005251C
Condition
Faulted
Location
Nr 1 Engine
Part time
55,954 hours, 20,364 cycles
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
B, A

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

What was found

ENG 1 LOW QTY. RANGES FROM 12-0 PERCENT PHOTOS PHOTO REMOVED ENGINE 1 LUBRICATION UNIT REF TASK 79-21-01-000-801-F00 COMPLETED TO STEP 7(D). INSTALLED LUBRICATION UNIT IAW AMM 79-21-01-400-801-F00. PERFORMED 5 MIN ENGINE IDLE RUN ON NR 1 IAW AMM 3A TASK 71-00-00-700-801-F00. NO LEAKS WERE DETECTED AFTER SHUT DOWN. OPS CHECK FOR LUBRICATION UNIT INSTALLATION SATISFACTORY AT THIS TIME IAW AMM 79-21-01-400-801-F00.