Service difficulty report · Support · Boeing 73779P

Difficulty date
February 3, 2025
Submitted
March 4, 2025
Operation
Air carrier
Aircraft
N7857B
Make and model
Boeing 73779P
Aircraft serial
29358
Aircraft time
59,090 hours, 39,530 cycles
Part
Support
Condition
Corroded
Location
Zone 100
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 SUPPORT ZEE LOCATED BTW BS727B TO BS747 RBL22 WL156.5 AFT CARGO COMPARTMENT 2025-93368<[01] EQUIPMENT P/N 45MG; S/N 130061901; DUE DATE 12-JUN-25 WAS USED ON STEP 3;[02] REPLACED SUPPORT ZEE AND FASTENERS LOCATED BTW BS727 TO BS767 RBL22 WL156.5 AFT CARGO COMPARTMENT IAW B737-700 SRM 51-40-02; SRM 51-10-02 ITEM 9 AND DWG 146A7500 SHEET 85 REV A; DWG 146A7502 SHEET 26 REV-. SEE INDIVIDUAL SIGN OFF BELOW.;[03] REPLACED SUPPORT ZEE AND FASTENERS LOCATED BTW BS727 TO BS767 RBL22 WL156.5 AFT CARGO COMPARTMENT IAW B737-700 SRM 51-40-02; SRM 51-10-02 ITEM 9 AND DWG 146A7500 SHEET 85 REV A; DWG 146A7502 SHEET 26 REV-. SEE INDIVIDUAL SIGN OFF BELOW.

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