Service difficulty report · Beam · Boeing 7377H4

Difficulty date
February 16, 2023
Submitted
March 20, 2023
Operation
Air carrier
Aircraft
N278WN
Make and model
Boeing 7377H4
Aircraft serial
36441
Aircraft time
52,434 hours, 31,459 cycles
Part
Beam
Condition
Corroded
Location
Zn 200 Fus Top
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 986.5 LBL 46.5 WL 208 AT AFT GALLEY AREA 2023-127571<[01] TOOL USED PN NORTEC 600D SN 220272712 DUE DATE 17-DEC-23;[02] TOOL USED: FLAPSPEED; PN: FPK-PRO-104; SN: PRO-3448; DUE DATE: 27-JUN-23;[03] PERFORMED PERMANENT REPAIR AT FLOOR BEAM BS 986.5 UPPER FLANGE BTW LBL 35 TO LBL 47 WL 208. AT AFT GALLEY AREA. IAW B737-700 SRM 53-70-51-2R-6. REPAIR 6. ALTERNATIVE 4. SEE INDIVIDUAL SIGN OFF BELOW.;[04] PERFORMED PERMANENT REPAIR AT FLOOR BEAM BS 986.5 UPPER FLANGE BTW LBL 35 TO LBL 47 WL 208. AT AFT GALLEY AREA. IAW B737-700 SRM 53-70-51-2R-6. REPAIR 6. ALTERNATIVE 4. SEE INDIVIDUAL SIGN OFF BELOW... RII ITEM

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