# SDR SWAA2023060143255

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 2023
- Submitted: June 1, 2023
- Operation: Air carrier
- Aircraft: [N961WN](https://openairdocs.org/aircraft/N961WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36962
- Aircraft time: 37,902 hours, 23,158 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shield
- Condition: Corroded
- Location: Zn 100 Fus Lower
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023060143255

## Discrepancy

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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