Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
July 11, 2022
Submitted
August 16, 2022
Operation
Air carrier
Aircraft
N484WN
Make and model
Boeing 7377H4
Aircraft serial
33841
Aircraft time
59,912 hours, 35,588 cycles
Part
Floorbeam
Condition
Corroded
Location
Fuselage
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 BEAM FLOOR STRUCTURE LOC. BS 986.5 AT LBL 43 AND WL 208.1 AFT GALLEY AREA 2022-381210 / [01] TOOL USED: ULTRASONIC THICKNESS GAGE P/N: 45MG; S/N: 130060401; DUE DATE: 26-JAN-23;[02] TOOL EDDY CURRENT USED P/N: NORTEC 600 S/N: 210138003 AND DUE DATE: 22-FEB-23.;[03] TOOL USED FLAPSPEED PN: FPK-PRO-104; SN: PRO-3447; CAL DUE DATE: 27-JUN-23;[04] PERFORMED PERMANENT REPAIR ON BEAM FLOOR STRUCTURE LOC. BS 986.5 AT LBL 43 AND WL 208.1 AFT GALLEY AREA IAW B737-700 SRM 53-70-51-2R-6 REPAIR 6.;[05] CORRECTED STEP 4. PERFORMED PERMANENT REPAIR ON BEAM FLOOR STRUCTURE LOC. BS 986.5 AT LBL 43 AND WL 208.1 AFT GALLEY AREA IAW B737-700 SRM 53-70-51-2R-6 REPAIR 6 ALTERNATIVE 4. SEE INDIVIDUAL SIGN OFFS BELOW.;[06] PERFORMED PERMANENT REPAIR ON BEAM FLOOR STRUCTURE LOC. BS 986.5 AT LBL 43 AND WL 208.1 AFT GALLEY AREA IAW B737-700 SRM 53-70-51-2R-6 REPAIR 6 ALTERNATIVE 4. SEE INDIVIDUAL SIGN OFFS BELOW.

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