Service difficulty report · Beam · Boeing 7377H4

Difficulty date
March 12, 2023
Submitted
April 17, 2023
Operation
Air carrier
Aircraft
N221WN
Make and model
Boeing 7377H4
Aircraft serial
34259
Aircraft time
58,906 hours, 34,822 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 AT LEVEL STR 17R WL 208.1 RBL 46 AT GALLEY AREA 2023-185342<[01] TOOL USED: ULTRASONIC THICKNESS GAGE P/N:45MG; S/N:221859911 DUE DATE: 07-NOV-23.;[02] TOOL USED: EDDY CURRENT EQUIPMENT. P/N: NORTEC 600D. S/N: 220272512. DUE DATE: 17-DEC-23.;[03] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 210138203; DUE DATE: 11-APR-23.;[04] PERFORMED PERMANENT REPAIR ON FLOOR BEAM 986.5 AT LEVEL STR 17R WL 208.1 RBL 46 AT GALLEY AREA IAW EA: 23-153-00987. SEE INDIVIDUAL SING-OFFS BELOW.;[05] CORRECTED ITEM 4: PERFORMED PERMANENT REPAIR ON FLOOR BEAM 986.5 BTW RBL 30.00 & RBL 50.00 AT WL 208.1 AFT GALLEY AREA IAW EA: 23-153-00987. SEE INDIVIDUAL SIGN-OFFS BELOW.;[06] PERFORMED PERMANENT REPAIR ON FLOOR BEAM 986.5 BTW RBL 30.00 & RBL 50.00 AT WL 208.1 AFT GALLEY AREA IAW EA: 23-153-00987. SEE INDIVIDUAL SIGN-OFFS BELOW. RII.

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