Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
April 28, 2023
Submitted
June 1, 2023
Operation
Air carrier
Aircraft
N226WN
Make and model
Boeing 7377H4
Aircraft serial
32494
Aircraft time
58,497 hours, 35,066 cycles
Part
Floorbeam
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 FLOOR STRUCTURE BEAM LOCATED BETWEEN BS986.5; WL208.1 AND RBL44 AT AFT GALLEY AREA 2023-295231<[01] EQUIPMENT P/N 45MG; S/N 130063701; DUE DATE 16-JUN-23 WAS USED.;[02] TOOL USED PN:38DL PLUS; SN:120398603; DUE DATE:07-NOV-23;[03] TOOL USED EDDY CURRENT EQUIPMENT P/N NORTEC 600D; S/N 60009161631 DUE DATE 31/JAN/24;[04] INSPECTION REJECT IN STEP 12<BR>SEE TTG8Q00KWUHT;[05] TOOLS USED: TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 25-JAN-24; TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811019; DUE DATE: 25-JAN-24.;[06] REPAIRED FLOOR BEAM LOC 986.5 AND WL208.1 AND RBL 8 TO RBL64 I.A.W B737-700 SRM 53-70-51-2R-4 REPAIR 4 ;EA NÏ¿½: 1-753-31349 AND EA 23-153-01501.SEE INDIVIDUAL STEP SIGN OFFS BELOW;[07] REPAIRED FLOOR BEAM LOC 986.5 AND WL208.1 AND RBL 8 TO RBL64 I.A.W B737-700 SRM 53-70-51-2R-4 REPAIR 4 ;EA NÏ¿½: 1-753-31349 AND EA 23-153-01501.SEE INDIVIDUAL STEP SIGN OFFS BELOW.. RII ITEM

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