Service difficulty report · Crease Beam · Boeing 7377H4

Difficulty date
September 27, 2023
Submitted
November 1, 2023
Operation
Air carrier
Aircraft
N456WN
Make and model
Boeing 7377H4
Aircraft serial
32463
Aircraft time
63,098 hours, 37,806 cycles
Part
Crease Beam
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
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

CORROSION CREASE BEAM LOCATED BS 639 LBL 64 WL 208.1 CENTER SECTION 2023-614905<[01] EQUIPMENT P/N 45MG; S/N 221859911; DUE DATE 07-NOV-23 AND EQUIPMENT P/N PHASEC 3D; S/N 587435/07; DUE DATE: 15-FEB-24 WERE USED.;[02] REPLACED CREASE BEAM LOCATED BETWEEN BS 616 MORE 12? TO BS 663.75 MORE 10? LBL 64 WL 208.1 CENTER SECTION I.A.W B737-700 SRM 51-40-02-0G-0 AND DWG #144A5901; SHEET 36; REV.-. SEE INDIVIDUAL SIGN OFF BELOW.;[03] REPLACED CREASE BEAM LOCATED BETWEEN BS 616 MORE 12? TO BS 663.75 MORE 10? LBL 64 WL 208.1 CENTER SECTION I.A.W B737-700 SRM 51-40-02-0G-0 AND DWG #144A5901; SHEET 36; REV.-. SEE INDIVIDUAL SIGN OFF BELOW.<BR>RII CERTIFIED

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