Service difficulty report · Unknown · Boeing 7377H4

Difficulty date
August 19, 2023
Submitted
September 26, 2023
Operation
Air carrier
Aircraft
N227WN
Make and model
Boeing 7377H4
Aircraft serial
34450
Aircraft time
59,279 hours, 35,528 cycles
Part
Unknown
Part number
UNKNOWN
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 EXISTING REPAIR LOCATED BS 312 LBL 8 WL 208.1 AT FWD GALLEY AREA 2023-530692<[01] TOOL USED EDDY CURRENT EQUIPMENT P/N: NORTEC 600D; S/N: 220272512; DUE DATE: 17-DEC-23.;[02] TOOL USED: CALIPER P/N: 500-197-30; S/N: B20189510; DUE DATE: 26-DEC-23.;[03] TOOL USED: RADIOMETER PHOTOMETER P/N: XRP-3000; S/N: 1753759; CAL DUE DATE: 14-OCT-23;[04] PERFORMED PERMANENT REPAIR LOCATED BS 312 BTW RBL 6 TO LBL 29 WL 208.1 AT FWD GALLEY AREA IAW B737-700 SRM 53-10-51-2R-12 REPAIR 12. THIS REPAIR IS CATEGORY A NOT FURTHER ACTION OR INSPECTION ADDITIONAL REQUIRED. SEE INDIVIDUAL SIGN OFF BELOW.;[05] PERFORMED PERMANENT REPAIR LOCATED BS 312 BTW RBL 6 TO LBL 29 WL 208.1 AT FWD GALLEY AREA IAW B737-700 SRM 53-10-51-2R-12 REPAIR 12. THIS REPAIR IS CATEGORY A NOT FURTHER ACTION OR INSPECTION ADDITIONAL REQUIRED. SEE INDIVIDUAL SIGN OFF BELOW.

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