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

CORROSION ON FWD CARGO BAY FWD DOOR SHIELD AT RBL 24 BS 420+6; BS 420+12.<[01] PARTIAL STEPS 1 AND 2.;[02] PARTIAL STEPS 1 AND 2; OUT OF LIMITS;[03] RECEIVED SHIELD ASSY. WITH P/N 143A8126-21 LOT.1504270-1. LOCATED AND DRILLED NEW PART BTW BS 420 - BS 440 IAW SRM 51-40-05 AND DWG# 143A0080.;[04] VERIFIED CORRECTIVE ACTION 3;[05] ALL STEPS COMPLETE VERIFIED MEASUREMENT FIELD

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