Service difficulty report · Shield · Boeing 7377H4

Difficulty date
June 8, 2023
Submitted
July 18, 2023
Operation
Air carrier
Aircraft
N963WN
Make and model
Boeing 7377H4
Aircraft serial
36676
Aircraft time
38,123 hours, 23,431 cycles
Part
Shield
Part number
UNKNOWN
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 AFT CARGO BAY DOOR CUT-OUT AFT SHIELD AT STA 847+18; RBL 22; WL 156.<[01] DAMAGE FOUND AT AFT CARGO BAY FLOOR SUPPORT FWD SHIELD BS 767 TO BS 864; RBL 22; WL 156 FOUND TO BE OUT OF LIMIT DUE TO NO LIMIT STATEMENT ON SRM PARTS WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0 PARE.9C;[02] REMOVED AFT CARGO CUT OUT AFT SHIELD;IAW SRM 51-40-02.;[03] RECEIVED NEW ON AFT CARGO BAY DOOR CUT-OUT SHIELD BS 847 TO BS867 RBL 22 P/N146A8127-10 PO#908098 LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG146A0081;[04] VERIFIED CORRECTIVE ACTION STEP #3. OK TO CONTINUE.;[05] APPLIED TOP-COAT FINISH PAINT BMS10-11 TYPE2 ON NEW SHIELD IAW AMM 51-21-73-370-804; 15-JUN-2023 03:47 UTC;[06] VERIFIED CORRECTIVE ACTION STEP 5;[07] APPLIED CORROSION INHIBITING COMPOUND ON NEW SHIELD IAW AMM 51-21-91-620-802.<BR>15-JUN-2023 06:07 UTC;[08] VERIFIED STEP # 7;[09] OK TO INSTALL ON ACB SHIELD BS 847 TO BS 867 RBL 22 WL 156;[10] VERIFIED CORRECTIVE ACTION 9; OK TO INSTALL;[11] INSTALLED ON ACB AFT SHIELD FROM<BR>BS 847 TO BS 867 RBL 22 WL 156 <BR>IAW SRM 51-40-02 AND DWG 146A0081.;[12] VERIFIED CORRECTIVE ACTION 11<BR><BR>VERIFIED MEASUREMENT TABLE

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