Service difficulty report · Floorbeam · Boeing 7377BD

Difficulty date
January 7, 2024
Submitted
February 9, 2024
Operation
Air carrier
Aircraft
N7726A
Make and model
Boeing 7377BD
Aircraft serial
33924
Aircraft time
58,090 hours, 31,857 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Corroded
Location
Bs 987 Lbl 42
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 42 WL 208.1 AT AFT GALLEY AREA 2023-786064<[01] EDDY CURRENT EQUIPMENT P/N: NORTEC 600D; S/N: 200053402; DUE DATE: 24-AUG-24.<BR><BR>ULTRASONIC THICKNESS GAGE P/N:45MG; S/N: 130060401; DUE DATE: 20-MAR-24.;[02] PERFORMED PERMANENT REPAIR ON FLOOR BEAM 986.5 LBL42 WL 208.1 IAW M-21-153-00612 . SEE INDIVIDUAL STEP SIGNOFF ON TTG8Q00QVEBU;[03] CORRECT STEP 2 : PERFORMED PERMANENT REPAIR ON FLOOR BEAM 986.5 LBL42 WL 208.1 IAW E.A M-21-153-00612 . SEE INDIVIDUAL STEP SIGNOFF ON TTG8Q00QVEBU;[04] CERTIFIED STEP 3 COMPLETED;[05] LATE ENTRY:<BR>CORROSION ON FLOOR BEAM 986.5 LBL 42 WL 208.1 AT AFT GALLEY ARE EVALUATED AND FOUND OUT OF LIMITS IAW B7373-700 SRM 53-70-51-1A-1 AD 1 PARAGRAPH 4 H (2)(B)1 FIG. 103 DETAIL E.;[06] CORRECTED STEP 5:<BR>LATE ENTRY:<BR>CORROSION ON FLOOR BEAM 986.5 LBL 42 WL 208.1 AT AFT GALLEY ARE EVALUATED AND FOUND OUT OF LIMITS IAW B737-700 SRM 53-70-51-1A-1 AD 1 PARAGRAPH 4 H (2)(B)1 FIG. 103 DETAIL E.;[07] CORRECTED STEP 4<BR>CERTIFIED STEPS 6 AND 3 COMPLETED <BR>TASK CARD COMPLETED

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