# SDR SWAA2021072689886

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2021
- Submitted: July 26, 2021
- Operation: Air carrier
- Aircraft: [N913WN](https://openairdocs.org/aircraft/N913WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29840
- Aircraft time: 43,304 hours, 26,170 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shield
- Condition: Corroded
- Location: Bs 514
- 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/SWAA2021072689886

## Discrepancy

CORROSION ON FCB AFT SHIELD BS 514; RBL 24; WL 156.5 (MARKED). ; / [01] NOT HAVE ENTRIES FOR ALLOWABLE DAMAGE IN SRM. THE PART MUST BE REPAIRED BY REPLACEMENT PER SRM. 51-10-02 ITEM 9.C.; [02] VERIFIED PART WILL BE REPLACE PER SRM 51-10-02 STEP 9.; [03] LOCATED AND DRILLED SHIELD P/N 143A8126-21; LOT.#146355;IAW SRM.51-40-05; DWG#143A0080.; [04] VERIFIED LOCATED AND DRILLED NEW SHIELD PER SRM 51-40-05; DWG#143A0080.; [05] CORRECTED PART Y LOT NUMBER OF THE SHIELD P/N 143A8126-31; LOT.#1461424;IAW SRM.51-40-05; DWG#143A0080.; [06] OK TO INSTALL ON FCB AFT SHIELD BTW BS.500-500A;RBL24;WL156.5; [07] OK TO INSTALL; [08] INSTALLED ON FCB AFT SHIELD P/N143A8126-31 BTW BS.500-500A;RBL24;WL156.5 PER SRM.51-40-02;DWG#143A0080.; [09] REMOVED AND REPLACED ON FCB AFT SHIELD P/N143A8126-31 BTW BS.500-500A;RBL24;WL156.5 PER SRM.51-10-02 ITEM 9.C. DWG#143A0080; [10] STEP 8 AND 9 COMPLETED; [11] VERIFIED INSTALLATION OF FCB AFT SHIELD P/N143A8126-31 BTW BS.500-500A;RBL24;WL156.5 PER SRM.51-10-02 ITEM 9.C. DWG#143A0080; [12] COMPLETE

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