Service difficulty report · Shield · Boeing 7377H4

Difficulty date
August 2, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N491WN
Make and model
Boeing 7377H4
Aircraft serial
33867
Aircraft time
53,758 hours, 31,898 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 BS847-867 RBL21 WL165. ; / [01] EVALUATED CORROSION; 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 CORRECTIVE ACTION 1 PER SRM 51-10-02-0G-0; [03] REMOVED AFT SHIELD IN AFT CARGO BAY BS 847-867 RBL 21; WL 165 PER SRM 51-40-02-0G-0.; [04] LOCATED; DRILLED; DEBURRED NEW AFT SHIELD BS 847-867 RBL21; WL 165 PER SRM 51-40-05-0G-0; BOEING DWG 146A0081.; [05] VERIFIED CORRECTIVE ACTION #4.; [06] OK TO INSTALL; [07] OK TO INSTALL ACB AFT SHIELD; [08] INSTALLED AFT SHIELD IN AFT CARGO BAY BS 847-867 RBL 21; WL 165 PER SRM 51-40-02-0G-0 AND DWG 146A0081.; [09] VERIFIED INSTALLATION OF AFT SHIELD IN ACB BS 847-867; RBL 21; WL 165; PER SRM 51-40-02-0G-0 AND DWG 146A0081.; [10] VERIFIED ALL WORK COMPLETE THIS TASK

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