Service difficulty report · Shield · Boeing 7377H4

Difficulty date
June 9, 2021
Submitted
July 19, 2021
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
54,253 hours, 32,244 cycles
Part
Shield
Condition
Corroded
Location
Bs 847-867
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 BS847 - BS867 RBL21 WL164. ; / [01] EVALUATED CORROSION ON SHIELD; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [02] VERIFIED CORROSION ON SHIELD; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [03] REMOVED AFT SHIELD BS 847- 867 RBL21 WL 164 PER SRM 51-40-02-0G-0.; [04] LOCATED; DRILLED; DEBURRED NEW SHIELD BS 847-867 RBL21; WL 164 PER SRM 51-40-05-OG-0; DWG 146A0081.; [05] LOCATED; DRILLED; DEBURRED NEW SHIELD BS 847-867 RBL21; WL 164 PER SRM 51-40-05-OG-0; DWG 146A0081; VERIFIED.; [06] OK TO INSTALL NEW ACB AFT SHIELD BS 847-867; RBL 21; WL 164.; [07] OK TO INSTALL SHIELD ASSY BS847- 867 RBL21; [08] INSTALLED ACB AFT SHIELD BS 847-867; RBL 21; WL 164 IAW SRM 51-40-02-0G-0; DWG# 146A0081.; [09] VERIFIED INSTALLED ACB AFT SHIELD BS 847-867; RBL 21; WL 164 IAW SRM 51-40-02-0G-0; DWG# 146A0081.; [10] COMPLETED

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