Service difficulty report · Shield · Boeing 7377H4

Difficulty date
May 30, 2023
Submitted
July 3, 2023
Operation
Air carrier
Aircraft
N960WN
Make and model
Boeing 7377H4
Aircraft serial
36675
Aircraft time
38,108 hours, 23,248 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

AFT CARGO COMPARTMENT CARGO BAY FWD SHIELD HAS CORROSION FROM STA:767+3 THRU RBL:787+4; RBL:26; WL:156<[01] NO ALLOWABLE DAMAGE FOUND FOR THIS PART IN B737-700 SRM 53-00-53-1A-2 AFT CARGO FLOOR STRUCTURE ALLOWABLE DAMAGE.<BR>REPAIR BY REPLACEMENT IAW SRM 51-10-02-0G-0 STEP 9.<BR>REMOVED DAMAGED SHIELD IAW SRM 51-40-02.;[02] DAMAGE ON SHIELD LOCATION IS BS 767+3 TO BS 787+4; RBL 20 TO RBL 23; WL 156.;[03] EDIT MEASUREMENTS TABLE;[04] LOCATED AND DRILLED NEW SHIELD PN:146A8127-12 LOT:1524920-3 IAW SRM 51-30-01-0G-0 & DWG 146A8127 ID:0008 REV:-;[05] OK TO INSTALL;[06] VERIFIED CORRECTIVE ACTION STEPS 4 AND 5. VERIFIED OK TO INSTALL.;[07] INSTALLED NEW SHIELD AFT CARGO COMPARTMENT STA:767+3 THRU 787+4 RBL:26; WL:156 IAW SRM 51-40-02-0G-0 & DWG:146A0081 ID:0025 REV:A;[08] VERIFIED CORRECTIVE ACTION STEP 7.;[09] VERIFIED MEASUREMENT TABLE AND TASK CARD COMPLETE.

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