Service difficulty report · Support · Boeing 73779P

Difficulty date
January 31, 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 BETWEEN BS500 TO BS500D LBL21 AND WL156 FWD CARGO COMPARTMENT 2025-93324<[01] EQUIPMENT P/N 45MG; S/N 130061901; DUE DATE 12-JUN-25 WAS USED ON STEP 3.;[02] INSTALLED SUPPORT ZEE LOCATED BTW TO BS400 TO BS 500D LBL 21 WL156 FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-02 DWG 143A7500 ;REV: - DWG 143A7505 REV D SRM 53-00-53-2R-6 REPAIR 6 SEE INDIVIDUAL SIGN OFF BELOW.;[03] CORRECTED STEP 2 <BR>REPLACED SUPPORT ZEE LOCATED BTW TO BS400 TO BS 500D LBL 21 WL156 FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-02 DWG 143A7500 ;REV: - DWG 143A7505 REV D SRM 53-00-53-2R-6 REPAIR 6 SEE INDIVIDUAL SIGN OFF BELOW.;[04] REPLACED SUPPORT ZEE LOCATED BTW TO BS400 TO BS 500D LBL 21 WL156 FWD CARGO COMPARTMENT IAW B737-700 SRM 51-40-02 DWG 143A7500 ;REV: - DWG 143A7505 REV D SRM 53-00-53-2R-6 REPAIR 6 SEE INDIVIDUAL SIGN OFF BELOW.

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