Service difficulty report · Beam · Boeing 7377H4

Difficulty date
May 13, 2023
Submitted
June 12, 2023
Operation
Air carrier
Aircraft
N900WN
Make and model
Boeing 7377H4
Aircraft serial
32544
Aircraft time
51,244 hours, 30,861 cycles
Part
Beam
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 BS 986.5 WL 208.1 AT LBL 44 AT AFT GALLEY AREA 2023-311324<[01] ULTRASONIC EQUIPMENT USED P/N: 45MG; S/N: 130063701 AND DUE DATE: 16-JUN-23.;[02] EDDY CURRENT EQUIPTMENT USED: PN:NORTEC 600D; SN: 60009161631; DUE DATE:31-JAN-24;[03] TOOL USED EDDY CURRENT EQUIPTMENT USED: PN:NORTEC 600D; SN: 60009161631; DUE DATE:31-JAN-24;[04] PERFORMED PERMANENT REPAIR LOCATED ON FLOOR STRUCTURE BEAM BS 986.5 WL 208.1 AT LBL 44 AT AFT GALLEY AREA IAW B737-700 SRM 53-70-51-2R-6 REPAIR 6.SEE INDIVIDUAL SIGNOFFS BELOW;[05] STEP 4 CORRECTED.PERFORMED PERMANENT REPAIR LOCATED ON FLOOR STRUCTURE BEAM BS 986.5 WL 208.1 BETWEEN LBL 41 TO LBL 46 AT AFT GALLEY AREA IAW B737-700 SRM 53-70-51-2R-6 REPAIR 6.SEE INDIVIDUAL SIGNOFFS BELOW;[06] PERFORMED PERMANENT REPAIR LOCATED ON FLOOR STRUCTURE BEAM BS 986.5 WL 208.1 BETWEEN LBL 41 TO LBL 46 AT AFT GALLEY AREA IAW B737-700 SRM 53-70-51-2R-6 REPAIR 6.SEE INDIVIDUAL SIGNOFFS BELOW. RII

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