# SDR SWAA2021122041576

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2021
- Submitted: December 20, 2021
- Operation: Air carrier
- Aircraft: N409WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27896
- Aircraft time: 67,505 hours, 40,058 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2021122041576

## Discrepancy

FWD CARGO FLOOR SUPPORT RIGHT SIDE AT STA 500 THRU 500A RBL 22'OF CENTER LINE IS CORRODED ; / [01] REMOVED CORROSION AT FWD CARGO;SIDE PLATE FLOOR SUPPORT R/SIDE;STA 500 THRU 500A;RBL 22'.PER B 737-700 SRM 51-10-02-0G.FOUND OUT OF LIMITS;CORROSION PASS THRU.PER B 737-700 SRM 53-00-53-1A-2; [02] UPDATED MEASUREMENTS; [03] VERIFIED STEPS #1 AND #2; [04] REMOVED AND REPLACED FLOOR SUPPORT (SHIELD) AT FWD CARGO RH STA 500 THRU 500A RBL 22 PER B737-700 SRM 51-40-02-0G-0.; [05] VERIFIED STEP 4

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