Service difficulty report · Shield · Boeing 7377H4

Difficulty date
July 29, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N447WN
Make and model
Boeing 7377H4
Aircraft serial
33720
Aircraft time
58,733 hours, 34,620 cycles
Part
Shield
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 BS779 RBL21 WL156. ; / [01] EVALUATED ON FWD SHIELD AT AFT CARGO BAY BS779 RBL21 WL156;AND NOT FOUND ALLOWABLE DAMAGE LIMITS ON SRM; MUST BE REPLACED IAW SRM 51-10-02 PARA#9.; [02] VERIFIED NO SRM LIMITS; [03] REMOVED ON FWD SHIELD AT AFT CARGO BS767-787+5 RBL21 WL156 IAW SRM 51-40-02.; [04] RECEIVED SHIELD P/N 146A8127-12; LOT. 1466598. LOCATED AND DRILLED ON FWD AFT CARGO BAY BTW BS767-BS794. RBL 21; WL 156 IAW SRM 51-40-05-0G-0; DWG# 146A0081. OK TO INSTALL.; [05] VERIFIED NEW PART LOCATION AND DRILL UP PER SRM 51-40-05 AND DWG# 146A0081. OK TO INSTALL; [06] INSTALLED FWD SHIELD AT AFT CARGO BAY BTW BS767-BS794. RBL 21; WL 156 IAW SRM 51-40-05-0G-0; DWG# 146A0081. ALL MAINTENANCE ACTIONS ARE COMPLETE REQUEST FINAL BUYOFF.; [07] INSTALLED FWD SHIELD AT AFT CARGO BAY BTW BS767-BS794. RBL 21; WL 156 IAW SRM 51-40-02-0G-0; DWG# 146A0081. ALL MAINTENANCE ACTIONS ARE COMPLETE REQUEST FINAL BUYOFF.; [08] UPDATED PARTS USAGE; [09] VERIFIED INSTALLATION FWD SHIELD AT AFT CARGO BAY BTW BS767-BS794. RBL 21; WL 156 IAW SRM 51-40-02-0G-0; DWG# 146A0081; [10] TASK COMPLETE

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