Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
October 12, 2023
Submitted
November 7, 2023
Operation
Air carrier
Aircraft
N909WN
Make and model
Boeing 7377H4
Aircraft serial
32458
Aircraft time
50,978 hours, 30,876 cycles
Part
Floorbeam
Part number
UNKNOWN
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 BEAM BS 312 AND LBL 15 APROX AT FWD GALLEY AREA 2023-635502<[01] TOOL USED: ULTRASONIC THICKNESS GAUGE; PN: 45MG; SN: 221861811; DUE DATE: 08-NOV-23;[02] PERFORMED PERMANENT REPAIR ON FLOOR BEAM LOC. BS 312 BTW LBL LBL30 TO BL0 AT FWD GALLEY AREA IAW EA 23-153-03114; EA 23-153-03114-WIP1; EA 23-153-03114-WIP2 AND EA 23-153-03114-WIP3. SEE INDIVIDUAL SIGNOFFS BELOW.;[03] PERFORMED PERMANENT REPAIR ON FLOOR BEAM LOC. BS 312 BTW LBL LBL30 TO BL0 AT FWD GALLEY AREA IAW EA 23-153-03114; EA 23-153-03114-WIP1; EA 23-153-03114-WIP2 AND EA 23-153-03114-WIP3. <BR>RII<BR>SEE INDIVIDUAL SIGNOFFS BELOW.

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