# SDR SWAA2021091500056

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2021
- Submitted: September 15, 2021
- Operation: Air carrier
- Aircraft: [N447WN](https://openairdocs.org/aircraft/N447WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33720
- Aircraft time: 58,733 hours, 34,620 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shield
- Condition: Corroded
- Location: Bs 852 Rbl 23
- 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/SWAA2021091500056

## Discrepancy

CORROSION ON AFT SHIELD AT AFT CARGO BAY BS852 RBL23 WL164. ; / [01] DAMAGE FOUND ON AFT SHIELD AT AFT CARGO BAY BS 852 RBL23 WL164; P/N: 146A8127-10; FOUND TO BE OUT OF LIMITS ON SRM PARTS WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0 PAR.9.C.; [02] VERIFIED DAMAGE FOUND ON AFT SHIELD AT AFT CARGO BAY BS 852 RBL23 WL164; P/N: 146A8127-10; FOUND TO BE OUT OF LIMITS ON SRM PARTS WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0 PAR.9.C.; [03] REMOVED SHIELD AT AFT CARGO BAY BS852 RBL23 WL164 IAW SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED NEW ACB; AFT SHIELD ITEM #146A8127Y10;LOT#1463083-1;PO#829927 IAW SRM 51-40-05-0G-0; [05] VERIFIED REMOVAL OF DAMAGED SHIELD AND LOCATED AND DRILLED NEW ACB; AFT SHIELD ITEM #146A8127Y10; LOT#1463083-1;PO#829927 IAW SRM 51-40-05-0G-0 AND SRM 51-40-02-0G-0; [06] OK TO INSTALL AFT SHIELD AT AFT CARGO BAY LOCATED BTW BS847- BS 867 WITH P/N 146A8127-10.; [07] OK TO INSTALL AFT CARGO BAY AFT SHIELD; [08] INSTALLED AFT SHIELD AT AFT CARGO BAY LOCATED BTW BS847- BS 867 WITH P/N 146A8127-10 IAW SRM 51-40-02-0G-0; DWG#146A0081. ALL MAINTENANCE ACTIONS ARE COMPLETE REQUEST FINAL BUYOFF.; [09] UPDATED PARTS USAGE; [10] RII INSPECTED INSTALLED AFT SHIELD AT AFT CARGO BAY LOCATED BTW BS847- BS 867 WITH P/N 146A8127-10 IAW SRM 51-40-02-0G-0; DWG#146A0081.; [11] INSPECTION COMPLETE

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