# SDR SWAA2020093016182

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 15, 2020
- Submitted: September 30, 2020
- Operation: Air carrier
- Aircraft: [N8652B](https://openairdocs.org/aircraft/N8652B), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36971
- Aircraft time: 20,887 hours, 9,203 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 143A7500
- Condition: Corroded
- Location: Bs 500a-500i
- 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/SWAA2020093016182

## Discrepancy

FWD PIT STA 500A TO 500I RBL 24 FLOOR SUPPORT Z ANGLE UPPER SURFACE CORRODED AT WL157.  REMOVED AND EVALUATED CORROSION ON FWD CARGO RT Z ANGLE FROM STA 500A TO 500I, IAW B737 SRM 51-10-02-0G-0 & 53-00-53-1A-2.  FOUND OUT OF LIMITS WITH .008' LOSS, ORIG .040' REMAIN .032'.  REMOVED & REPLACED RT Z-ANGLE FROM STA 500A TO 500I RBL 24, IAW BOEING DWG 143A7500 REV-& B737 SRM 53-00-53-2R-5 P/N 143A7501-188.

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