Service difficulty report · Oil System · Boeing 7377CT

Difficulty date
September 24, 2025
Submitted
September 29, 2025
Operation
Air carrier
Aircraft
N7821L
Make and model
Boeing 7377CT
Aircraft serial
32748
Aircraft time
70,242 hours, 36,685 cycles
Engine
Cfmint CFM567B242
Engine time
57,176 hours, 30,203 cycles
Part
Oil System
Condition
Low
Location
Nr 2 Engine
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
E, A

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

What was found

#2 ENG. OIL SERVICED TO FULL IN BNA. DROPPED BELOW 50% DURING FIRST HOUR OF FLIGHT; THEN TO 0% & OIL PRESSURE WENT TO 0 PSI DURING DECENT INTO ORF. MANUALLY SHUT DOWN #2 ENGINE.REMOVED AND REPLACED #2 ENGINE ASSEMBLY AS PER MT 771-00-01; REFERENCE WO #107344052 FOR FURTHER DETAILS.

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