Service difficulty report · Support · Boeing 7377H4

Difficulty date
November 2, 2024
Submitted
December 10, 2024
Operation
Air carrier
Aircraft
N274WN
Make and model
Boeing 7377H4
Aircraft serial
32529
Aircraft time
57,880 hours, 34,803 cycles
Part
Support
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 ON SUPPORT ZEE LOCATED BTW BS747 TO BS807 WL156 AND LBL21 AFT CARGO COMPARTMENT 2024-685338<[01] TOOL USED: ULTRASONIC THICKNESS GAGE; P/N: 45MG; S/N: 130064101; DUE DATE: 13 DEC 24.;[02] FAULT WAS RESOLVED ON ANOTHER FAULT<BR>REPLACED SUPPORT ZEE LOCATED BTW BS727 TO BS847 WL156 AND LBL21;AFT CARGO COMPARTMENT IAW B737-700 SRM 53-00-53-2R-6 REPAIR 6;FIG 203 SHEET 1;SRM 51-40-02;SRM 51-10-02 ITEM 9;DWG 146A7500 SHEET 85 REV A; SEE FAULT TTG8Q00WU5WM FOR PARTS REPLACEMENT STEPS IAW MPM PCW 51-3-3<BR>SEE INDIVIDUAL SIGN OFF BELOW;[03] FAULT WAS RESOLVED ON ANOTHER FAULT<BR>REPLACED SUPPORT ZEE LOCATED BTW BS727 TO BS847 WL156 AND LBL21;AFT CARGO COMPARTMENT IAW B737-700 SRM 53-00-53-2R-6 REPAIR 6;FIG 203 SHEET 1;SRM 51-40-02;SRM 51-10-02 ITEM 9;DWG 146A7500 SHEET 85 REV A; SEE FAULT TTG8Q00WU5WM FOR PARTS REPLACEMENT STEPS IAW MPM PCW 51-3-3<BR>SEE INDIVIDUAL SIGN OFF BELOW

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