Service difficulty report · Engine · Boeing 737823

Difficulty date
September 28, 2025
Submitted
September 30, 2025
Operation
Air carrier
Aircraft
N973NN
Make and model
Boeing 737823
Aircraft serial
31219
Aircraft time
30,620 hours, 13,085 cycles
Engine
Cfmint CFM567B242
Part
Engine
Condition
Faulted
Location
Zone 400
Stage of operation
CL
How discovered
O
Nature of condition
R, Y, 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

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AFTER TAKEOFF N1 HAD A 7 PERCENT SPLIT AND ENGINE SHUTDOWN ON IT`S OWN. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT ORD. (OPEN).