# SDR SWAA2026040980337

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2026
- Submitted: April 9, 2026
- Operation: Air carrier
- Aircraft: [N8631A](https://openairdocs.org/aircraft/N8631A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 42385
- Aircraft time: 39,753 hours, 19,327 cycles
- System (JASC): [2550 · Cargo Compartments](https://openairdocs.org/jasc/2550)
- Part: Shield
- Condition: Corroded
- Location: Zn 100
- 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/SWAA2026040980337

## Discrepancy

FCB; AFT SHIELD BS 490 TO 500A RBL 25 HAS SEVERAL SPOTS OF CORROSION (MARKED).<[01] REPAIRED BY REPLACEMENT FCB AFT SHIELD BS 490 TO BS 500A; RBL 25 PER SRM 51-10-02 PARAGRAPH 9.C

---
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.