# SDR SWAA2022030745896

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2019
- Submitted: March 7, 2022
- Operation: Air carrier
- Aircraft: [N435WN](https://openairdocs.org/aircraft/N435WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32455
- Aircraft time: 55,870 hours, 32,984 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Intercostal
- Part number: 146A813212
- Condition: Corroded
- Location: Aft Cargo Compt
- 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/SWAA2022030745896

## Discrepancy

AFT CARGO COMPARTMENT BETWEEN STA 787 AND 767 RBL 6 INTERCOASTAL WEB IS CORRODED ON INBD SIDE AS MARKED / AFT CARGO INTERCOSTAL AT 767 TO 787; RBL6 BLENDED CORROSION IAW 737-700 SRM 51-10-02-0G-0. VERIFIED MATERIAL LOSS AT ORG 'T'= .040'; REMAIN .032' LOSS OF .008' IS OUT OF LIMITS IAW 737-700 SRM 737-700 53-00-53-1A-2 TOOL # 36647 DUE 10JAN19. RECEIVED NEW INTERCOSTAL P/N: 146A8132-12 FROM BACKSHOP W/O#39275-1600-0001. INSTALLED NEW INTERCOSTAL P/N 146A8132-12 IAW 737-700 SRM 51-40-02-0G-0 AND BOEING DWF 146A8130 REV C. A-TAG A88273

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.