Service difficulty report · Shield · Boeing 73776N

Difficulty date
July 15, 2021
Submitted
August 10, 2021
Operation
Air carrier
Aircraft
N7723E
Make and model
Boeing 73776N
Aircraft serial
32670
Aircraft time
48,099 hours, 24,239 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 ON FWD SHIELD AT AFT CARGO BAY BS767 - BS787 RBL21 WL157. ; / [01] EVALUATED ACB SHIELD BS767-787 RBL21 WL157 AND FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ON SRM 53-60-15-1A-1; PART REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0 PART 9C; [02] REMOVED ACB SHIELD BS767-787 RBL21 WL157 IAW SRM 51-40-02-0G-0; [03] VERIFIED EVALUATED ACB SHIELD BS767-787 RBL21 WL157 AND FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ON SRM 53-60-15-1A-1; PART REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0 PART 9C; [04] RECIVED NEW SHIELD ITEM 7531132 P/N 146A8127-12 LOCATED AND DRILLED NEW SHIELD AT BS 767 - BS 787; RBL21; WL 157 ; IAW B 737-700 SRM 51-40-05-OG-0 DWG 146A0081.-; [05] UPDATED PARTS USAGE; [06] INSPECTED RECIVED NEW SHIELD ITEM 7531132 P/N 146A8127-12 LOCATED AND DRILLED NEW SHIELD AT BS 767 - BS 787; RBL21; WL 157 ; IAW B 737-700 SRM 51-40-05-OG-0 DWG 146A0081.-; [07] APPLIED ONE COAT OF BMS10-11 TYPE II ENAMEL ON NEW SHIELD PER SOPM 20-41-02 ; OK TO INSTALL; [08] VERIFIED APPLICATION OF ONE COAT OF BMS10-11 TYPE II ENAMEL ON NEW SHIELD PER SOPM 20-41-02 ; OK TO INSTALL; [09] INTALED NEW SHIELD AT AFT BS 7767 RBL 21 WL157 IWA 737-700 SRM 51-40-02-GO-0 DWG 146A081.ALL REQUIRED MAINTENANC ACTION ARE COMPLETE = REQUEST FINAL BUYOFF.-; [10] VERIFIED ACTION 9; [11] VERIFIED ACTION 9; [12] CORRECTION FOR CORRECTIVE ACTION 9: INSTALLED NEW SHIELD AT BS 767-787 RBL 21; WL 157 PER AMM 51-40-02-0G-0 AND DWG 146A0081

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