Service difficulty report · Crease Beam · Boeing 7377H4

Difficulty date
June 26, 2025
Submitted
July 22, 2025
Operation
Air carrier
Aircraft
N446WN
Make and model
Boeing 7377H4
Aircraft serial
29842
Aircraft time
69,688 hours, 41,502 cycles
Part
Crease Beam
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

CORROSION CREASE BEAM LOCATED STA639 PLUS 2 INCHES AND RBL64 WL208.1 PASSENGER CABIN 2025-403073. REPLACED CREASE BEAM (INNER CHORD SECTION) LOCATED STA 616+13 INCH TO BS 663.75+9 INCH RBL64 WL208.1 PASSENGER CABIN.IAW B737-700 SRM 51-40-02 SRM 51-10-02 ITEM 9 AND DWG 144A5901 SHEET 36 REV-.

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