Service difficulty report · Rib · Boeing 7377H4

Difficulty date
December 17, 2025
Submitted
December 23, 2025
Operation
Air carrier
Aircraft
N932WN
Make and model
Boeing 7377H4
Aircraft serial
36639
Aircraft time
54,386 hours, 33,105 cycles
Engine
Cfmint CFM567B243
Part
Rib
Condition
Cracked
Location
Nr 2 Engine
Stage of operation
IN
How discovered
9
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

#1 ENG OUTER LINER HAS ONE CRACK THAT GOES ACROSS 3 AND A HALF PANELS AT S10 (RIGHT IGNITOR). COLD SIDE INSPECTION SHOWS RIBS 4;5 AND 6 ARE CRACKED. OKAY TO CONTINUE; CIS FOR 25 CYCLES FOR ENGINE REPLACEMENT PER AMM 72-00-00-200-805-F00. REF TSR-20250010142.

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