# SDR SWAA2021080487606

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 23, 2021
- Submitted: August 4, 2021
- Operation: Air carrier
- Aircraft: [N940WN](https://openairdocs.org/aircraft/N940WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36900
- Aircraft time: 39,596 hours, 24,067 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shield
- Condition: Corroded
- Location: Bs 420-440
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021080487606

## Discrepancy

BS 420-440 RBL24.5 WL157 FLOOR TO SIDEWALL SHIELD IS CORRODED. / [01] EVALUATED CORROSION FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [02] VERIFIED CORROSION TO BE OUT OF LIMITS DUE TO NO ALLOWABLE DAMAGE PER SRM. REPLACE PER SRM 51-10-02-0G-0; [03] REMOVED FCB FORWARD SHIELD AT BS420-BS440; RBL24.5; WL 157 PER SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED FCB SHIELD BS420 -BS440; RBL24.5; WL157 PER SRM 51-40-050G-0 AND DWG 143A0080; [05] VERIFIED LOCATED AND DRILLED FCB SHIELD BS420 -BS440; RBL24.5; WL157 PER SRM 51-40-050G-0 AND DWG 143A0080; [06] INSPECTED; OK TO INSTALL; [07] INSTALLED FCB SHIELD BS420 -BS440; RBL24.5; WL157 PER SRM 51-40-02-0G-0 AND DWG 143A0080; [08] RII INSPECTED SHIELD INSTALLATION; [09] COMPLETE

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