Service difficulty report · Crease Beam · Boeing 7377H4

Difficulty date
June 22, 2025
Submitted
July 15, 2025
Operation
Air carrier
Aircraft
N429WN
Make and model
Boeing 7377H4
Aircraft serial
33658
Aircraft time
72,793 hours, 43,149 cycles
Part
Crease Beam
Condition
Corroded
Location
Zone 200
Stage of operation
IN
How discovered
E
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

CORROSION CREASE BEAM AT LEVEL STA 639 RBL 64 AND WL 208.1 AT PASSENGER CABIN. REPLACED CREASE BEAM (INNER CHORD) AND FASTENERS AT LEVEL BTW STA 613 TO BS 664 RBL 64 AND WL 208.1 AT PASSENGER CABIN IAW SRM 51-40-02; SRM 51-10-02 Ï¿½TEM 9 AND DWG 144A5901 SHEET 20 AND SHEET 21 REV-A.

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