Service difficulty report · Shield · Boeing 7377K9

Difficulty date
September 2, 2022
Submitted
October 5, 2022
Operation
Air carrier
Aircraft
N7879A
Make and model
Boeing 7377K9
Aircraft serial
34321
Aircraft time
51,347 hours, 25,724 cycles
Part
Shield
Condition
Corroded
Location
Bs 767-787
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* AFT CARGO RT SIDE FLOOR SUPPORT Z AT S-25R BETWEEN STA. 767 AND STA 787 RBL 22 WL 156 HAS SURFACE CORROSION AROUND FASTENER HOLES AS MARKED. 124-008 / [01] EVALUATED CORROSION AT AFT CARGO RT SIDE FLOOR SUPPORT Z (SHIELD) AT S-25R BETWEEN STA. 767 AND STA 787 RBL 22 WL 156 FOUND CORROSION TRU OUT OF LIMITS PER REF B737-700 SRM 51-10-02-0G-0.;[02] RECEIVED AND LOCATED AND DRILLED NEW SHIELD P/N:146A8127-12 AT AFT CARGO COMPT R/H BETWEEN STA 767 TO STA 787 WL 156 PER REF B737-700 SRM 51-40-05-0G-0.;[03] VERIFIED STEPS 1 AND 2;<BR>OK TO TREAT AND PRIME BARE SURFACES;[04] TREATED AND PRIMED BARE SURFACES AREA AT AFT CARGO COMPT R/H SIDE BETWEEN STA 767 TO STA 787 (SHIELD P/N:146A8127-12) PER REF B737-700 AMM 51-21-72-370-804 AND AMM 51-21-41-370-804.;[05] FOR INSTALLATION OF AFT CARGO COMPT R/H BETWEEN STA 767 TO STA 787 SHIELD P/N:146A8127-12 REFER TO TASK CARD#TTG8Q004FGM4.;[06] VERIFIED 5

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