Service difficulty report · Oil System · Boeing 737823

Difficulty date
April 14, 2026
Submitted
April 16, 2026
Operation
Air carrier
Aircraft
N860NN
Make and model
Boeing 737823
Aircraft serial
40583
Aircraft time
45,660 hours, 19,658 cycles
Engine
Cfmint CFM567B243
Engine time
46,614 hours, 19,554 cycles
Part
Oil System
Condition
Leaking
Location
Nr 2 Engine
Stage of operation
CL
How discovered
O
Nature of condition
K, J
Precautionary procedure
A

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

What was found

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: SUSPECTED OIL LEAK IN THE NUMBER 2 ENGINE OIL QUANTITY WAS 12 QTS, AFTER TAKE OFF DRAMATICALLY DROPPED TO 9QTS, STAYED AT 9QTS FOR ABOUT AN HOUR. AFTERWARDS, IT THEN DROPPED TO 5QTS. THEN SLOWLY DECREASED BY 1QT EVERY 20 MINUTES. LOWEST OBSERVED WAS 2QT BEFORE LANDING. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT SJU.