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 856
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 AFT SHIELD AT AFT CARGO BAY BS856 RBL21 WL164. ; / [01] EVALUATED ACB SHIELD BS856 RBL21 WL164 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 BS847-867 RBL21 WL164 IAW SRM 51-40-02-0G-0; [03] VERIFIED EVALUATED ACB SHIELD BS856 RBL21 WL164 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 146A8127Y10 LOT 1463083-1 LOCATED AND DRILLED NEW SHIELD AT BS 856; RBL 21; WL164; IAW 737-700 SRM 51-40-05-OG-0 DWG146A0081; [05] VERIFIED; CONFIRMED LOCATE AND DRILL UP OF NEW SHIELD; OK TO PROCEED; [06] APPLIED ONE COAT OF BMS10-11 TYPE II ENAMEL ON NEW SHIELD PER SOPM 20-41-02 ; OK TO INSTALL; [07] VERIFIED APPLICATION OF ONE COAT OF BMS10-11 TYPE II ENAMEL ON NEW SHIELD PER SOPM 20-41-02 ; OK TO INSTALL; [08] INTALED NEW SHIELD AT AFT BS 856 RBL 21 WL64 IWA 737-700 SRM 51-40-02-GO-0 DWG 146A081.ALL REQUIRED MAINTENANC ACTION ARE COMPLETE = REQUEST FINAL BUYOFF.-; [09] CORRECTION WL164; [10] PART USAGE INFO; [11] VERIFIED ACTION 8; 9; [12] VERIFIED ACTION 8; 9

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