Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
September 25, 2024
Submitted
October 30, 2024
Operation
Air carrier
Aircraft
N499WN
Make and model
Boeing 7377H4
Aircraft serial
32481
Aircraft time
65,731 hours, 39,209 cycles
Part
Attach Angle
Condition
Cracked
Location
Zone 100
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

CRACK ON ATTACHED ANGLE AT KEEL BEAM STRUCTURE AT STA 727 AND BETWEEN RBL 3.00 TO RBL 8.10 BILGE AREA AFT CARGO COMPARTMENT 2024-588564 CRACK ON ATTACHED ANGLE AT KEEL BEAM STRUCTURE AT STA 727 AND BETWEEN RBL 3.00 TO RBL 8.10 BILGE AREA AFT CARGO COMPARTMENT<[01] ON STEPS 5 AND 6; EDDY CURRENT EQUIPMENT P/N: NORTEC 600D; S/N: 220272512; DUE DATE: 08-JAN-25.;[02] TOOL USED: TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 142811020 DUE DATE: 23-JAN-25. TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 142811019 DUE DATE: 23-JAN-25;[03] TOOL USED RADIOMETER/PHOTOMETER KIT P/N: XRP-3000; S/N :1998072 ; DUE DATE : 23/JAN/25;[04] PERFORMED PERMANENT REPAIR KEEL BEAM LOCATED BTW BS 727 TO BS 727A RBL 6.3 AFT CARGO COMPARTMENT IAW B737-700 SRM 53-60-12-2R-1 REPAIR 1 SEE INDIVIDUAL SIGNS-OFF BELOW.;[05] CORRECTED STEP 4<BR>PERFORMED PERMANENT REPAIR KEEL BEAM LOCATED BTW BS 727 TO BS 727A RBL 3.00 TO RBL 8.10 AFT CARGO COMPARTMENT IAW B737-700 SRM 53-60-12-2R-1 REPAIR 1 SEE INDIVIDUAL SIGNS-OFF BELOW;[06] RII ITEM <BR>PERFORMED PERMANENT REPAIR KEEL BEAM LOCATED BTW BS 727 TO BS 727A RBL 3.00 TO RBL 8.10 AFT CARGO COMPARTMENT IAW B737-700 SRM 53-60-12-2R-1 REPAIR 1 SEE INDIVIDUAL SIGNS-OFF BELOW

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