Service difficulty report · Shield · Boeing 7377Q8

Difficulty date
May 13, 2022
Submitted
June 16, 2022
Operation
Air carrier
Aircraft
N7876A
Make and model
Boeing 7377Q8
Aircraft serial
29355
Aircraft time
50,771 hours, 27,451 cycles
Part
Shield
Part number
146A812712
Condition
Corroded
Location
Aft Cargo Bay
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 FWD SHIELD AT AFT CARGO BAY BS767 - BS787 RBL21. / [01] CORROSION AT ACB FWD SHIELD FOUND TO BE OUT OF LIMIT DUE TO NO ALLOWABLE DAMAGE ON SRM PARTS WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0 PAR-9;[02] REMOVED FWD SHIELD AT AFT CARGO BAY LOCATED BTW. BS. 767 - 787 RBL 21 IAW SRM 51-40-02-0G-0.;[03] VERIFIED CORRECTIVE ACTION STEPS 1 AND 2.;[04] RECEIVED SHIELD ASSEMBLY P/N 146A8127-12; LOT:1487443-1. LOCATED AND DRILLED FWD. SHIELD BTW BS 767 - BS 787 RBL 21 IAW SRM 51-40-02-0G-0 DWG#146A0081.;[05] VERIFIED CORRECTIVE ACTION STEP 4.;[06] THE ENAMEL PAINT & ONE COAT OF BMS3-35 CIC ON THE PART MUST BE ACCOMPLISHED WITH CUSTOMER CARD# TTG8Q004G3QA. OK TO INSTALL;[07] VERIFIED CORRECTIVE ACTION STEP 6. VERIFIED OK TO INSTALL.;[08] INSTALLED NEW ACB FWD SHIELD BS 767-794 RBL 21 IAW SRM 51-40-02 ND DWG # 146A0081;[09] PART REMOVAL UPDATED;[10] VERIFIED CORRECTIVE ACTION #8.;[11] VERIFIED MEASUREMENT FIELD.

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