Service difficulty report · Floorbeam · Boeing 73771B

Difficulty date
September 13, 2024
Submitted
October 23, 2024
Operation
Air carrier
Aircraft
N7854B
Make and model
Boeing 73771B
Aircraft serial
29372
Aircraft time
51,205 hours, 33,957 cycles
Part
Floorbeam
Condition
Corroded
Location
Zone 200
Stage of operation
IN
How discovered
V
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 STRUCTURE BEAM BS 986.5 BETWEEN RBL 29 TO RBL 43 AT AFT GALLEY AREA 2024-572703 CORROSION FLOOR STRUCTURE BEAM BS 986.5 BETWEEN RBL 40 TO RBL 43 APPROX. AT AFT GALLEY AREA<[01] EQUIPMENT P/N 45MG; S/N 221861811; DUE DATE 30-NOV-24 WAS USED ON STEP 5;[02] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 220273012; DUE DATE: 09-JAN-25.;[03] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 220273012; DUE DATE: 09-JAN-25.;[04] INSTALLED REPAIR PARTS COMPLETE LOC. AT FLOOR BEAM 986.5 FWD UPPER FLANGE RBL43 APPROX. AND WL208.1 AT AFT GALLEY AREA IAW B737-700 SRM 53-70-51-2R-6 SEE INDIVIDUAL SIGN OFF BELOW;[05] INSTALLED REPAIR PARTS COMPLETE LOC. AT FLOOR BEAM 986.5 FWD UPPER FLANGE RBL43 APPROX. AND WL208.1 AT AFT GALLEY AREA IAW B737-700 SRM 53-70-51-2R-6 SEE INDIVIDUAL SIGN OFF BELOW<BR>RII CERTIFIED

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