Service difficulty report · Shield · Boeing 7377H4

Difficulty date
June 10, 2021
Submitted
June 14, 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 500
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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 FWD CARGO BAY BS500+5 RBL23 WL156. EVALUATED CORROSION ON SHIELD, FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN SRM & REQUIRES REPLACEMENT IAW SRM 51-10-02-0G-0. REMOVED SHIELD BS 492-500A RBL 23 WL 156 IAW SRM 51-40-02-0G-0. LOCATED DRILLED DEBURRED NEW SHIELD PER SRM 51-40-05-0G-0 DWG 143A0080. INSTALLED FWD CARGO BAY AFT SHIELD BS 492-500A RBL 23 WL 156 IAW SRM 51-40-02-0G-0 DWG# 143A0080.

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