Service difficulty report · Shield · Boeing 7377H4

Difficulty date
April 28, 2023
Submitted
June 1, 2023
Operation
Air carrier
Aircraft
N961WN
Make and model
Boeing 7377H4
Aircraft serial
36962
Aircraft time
37,902 hours, 23,158 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 AREAS OF CORROSION ON AFT CARGO BAY FWD DOOR SHIELD AT RBL 21 BS 767-787+5 WL 155.<[01] NO ALLOWABLE DAMAGE LIMITS IN SRM. REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02-0G-0 PARAGRAPH # 9;[02] VERIFIED CORRECTION ACTION ITEM 1.;[03] RECEIVED NEW SHIELD P/N 146A8127-12; LOT: 1524920-2<BR>LOCATED AND DRILLED BETWEEN AT RBL 21<BR>BS 767 BS 787+5 WL 155<BR>IAW SRM 51-40-05 AND DWG: 146A0081<BR>OK TO TOP COAT;[04] VERIFIED CORRECTIVE ACTION 3.<BR>OK TO TOPCOAT APPLICATION.;[05] VERIFIED MEASUREMENT TABLE;[06] APPLIED TOPCOAT ON SHIELD <BR>IAW CUSTOMER CARD # M-22-125-02598 AND AMM 51-21-73<BR>04-MAY-2023 16:26 UTC OK TO CIC.;[07] REMOVED FROM ACB FWD SHIELD <BR>AT RBL21 BS 767 BS 787+5 WL 156<BR>IAW SRM 51-40-02.;[08] VERIFIED CORRECTIVE ACTIONS 6 AND 7.;[09] APPLIED CIC ON FWD SHIELD <BR>IAW CUSTOMER CARD # M-22-125-02598 AND SRM 51-20-01<BR>05-MAY-2023 18:45 UTC<BR>OK TO INSTALL;[10] VERIFIED CORRECTIVE ACTION 9;[11] FWD SHIELD OK TO INSTALL GIVEN;[12] INSTALLED ON ACB FWD SHIELD<BR>AT BS 767+8 BS 787+5 RBL21 WL 155<BR>IAW SRM 51-40-02 AND DWG 146A0081;[13] VERIFIED CORRECTIVE ACTION 12 AND MEASUREMENT TABLE

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