Service difficulty report · Shield · Boeing 7377BD

Difficulty date
March 3, 2023
Submitted
April 3, 2023
Operation
Air carrier
Aircraft
N556WN
Make and model
Boeing 7377BD
Aircraft serial
33936
Aircraft time
37,398 hours, 21,958 cycles
Part
Shield
Condition
Corroded
Location
Zn 100 Fus Lower
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

MULTIPLE AREA OF CORROSION ON FWD CARGO BAY AFT DOOR SHIELD AT RBL 24 BS 480+13-500.<[01] CORROSION ON FWD CARGO BAY AFT DOOR SHIELD AT RBL 24 BS 480+13-500 WITH NEXT DIMENSION L=0.700'; W=0.300'; X=0.006' TOOL USED DEPTH GAGE ID: ATS2472; DATE:12/20/2022; DUE: 12/31/23; FOUND TO BE OUT LIMITS DUE TO NO ALLOWABLE DAMAGE IN SRM; IT WILL BE REPAIRABLE BY REPLACEMENT I.A.W SRM 51-10-02-0G PAR 9C .;[02] VERIFIED CORRECTIVE ACTION #1; OUT OF LIMITS;[03] RECEIVED SHIELD ASSY. WITH P/N 143A8126-31 LOT.1519861-1. LOCATED AND DRILLED NEW PART BTW BS 492.4 - BS 500A IAW SRM 51-40-05 AND DWG# 143A0080.;[04] ALL MAINTENANCE ACTION ARE COMPLETE REQUEST FINAL BUY OFF.;[05] VERIFIED CORRECTIVE ACTION 3&4; VERIFIED MEASUREMENT FIELD;[06] ALL STEPS COMPLETE

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