Service difficulty report · Support · Boeing 7377H4

Difficulty date
December 22, 2025
Submitted
January 19, 2026
Operation
Air carrier
Aircraft
N946WN
Make and model
Boeing 7377H4
Aircraft serial
36918
Aircraft time
50,632 hours, 31,066 cycles
Part
Support
Condition
Corroded
Location
Zone 100
Stage of operation
IN
How discovered
V
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

FCB; AFT LOWER BULKHEAD SUPPORT BS 500D, RBL 22 TO LBL 22 HAS SEVERAL SPOTS OF CORROSION. REMOVED AND REPLACED FCB LOWER AFT BULKHEAD SUPPORT RAIL IAW SRM 51-10-02 PAR 9 AND SRM 51-40-02.

More about the Boeing 737-7H4