Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
May 6, 2023
Submitted
June 5, 2023
Operation
Air carrier
Aircraft
N283WN
Make and model
Boeing 7377H4
Aircraft serial
36610
Aircraft time
52,109 hours, 31,408 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 ON FLOOR BEAM LOCATED BS 986.5 AT LEVEL STR 17R RBL 43 WL 208.1 AT AFT GALLEY AREA 2023-299421<[01] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 60009161631; DUE DATE: 31-JAN-24.;[02] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 60009161631; DUE DATE: 31-JAN-24.;[03] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 60009161631; DUE DATE: 31-JAN-24.;[04] REPLACED T-CHORD LOCATED ON FLOOR BEAM LOCATED BS 986.5 AT LEVEL STR 17R RBL 43 WL 208.1 AT AFT GALLEY AREA IAW B737-700 SRM 53-70-51-2R-4; EA NO:1-753-35007 REV: IR;[05] CORRECTED STEP 4:<BR>REPLACED T-CHORD LOCATED ON FLOOR BEAM LOCATED BS 986.5 AT LEVEL STR 17R RBL 43 WL 208.1 AT AFT GALLEY AREA IAW B737-700 SRM 53-70-51-2R-4; EA NO:1-753-35007 REV: IR.<BR>SEE INDIVIDUAL SIGN OFF BELOW.;[06] REPLACED T-CHORD LOCATED ON FLOOR BEAM LOCATED BS 986.5 AT LEVEL STR 17R RBL 43 WL 208.1 AT AFT GALLEY AREA IAW B737-700 SRM 53-70-51-2R-4; EA NO:1-753-35007 REV: IR. RII. SEE INDIVIDUAL SIGN OFF BELOW.

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