# SDR SWAA2021080487613

- 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: Support
- Condition: Corroded
- Location: Bs 767-793
- 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/SWAA2021080487613

## Discrepancy

CORROSION ON FLOOR TO SIDE WALL SUPPORT BS 767-793; RBL 21; WL 156 ; / [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 THE SRM. REPLACE PER SRM 51-10-02-0G-0; [03] REMOVED ACB FWD SHIELD BS767-BS793; RBL 21; WL 156. PER SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED NEW ACB FWD SHIELD BS767-793; RBL21; WL156. PER DWG 146A0081 AND SRM 51-40-05-0G-0; [05] VERIFIED CORRECTIVE ACTION ITEMS 3 AND 4; [06] OK TO INSTALL SHIELD BS 767-793 RBL 21L; WL 156.; [07] OK TO RE-INSTALL ACB FLOOR TO SIDEWALL ANGLE AT BS 767-BS 793; RBL 21; WL 156 GIVEN.; [08] INSTALLED SHIELD BS 767-793 RBL 21; WL 156 PER SRM 51-40-02-0G-0; DWG 146A0081.; [09] VERIFIED INSTALLATION OF FWD SHIELD/ FLOOR TO SIDEWALL SUPPORT BS767-793 RBL21; WL156 PER SRM 51-40-02-0G-0; DWG 146A0081.; [10] VERIFIED REPLACEMENT AND INSTALLATION OF FWD SHIELD/ FLOOR TO SIDEWALL SUPPORT BS767-793 RBL21; WL156 PER SRM 51-40-02-0G-0; DWG 146A0081.

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