# SDR SWAA2021061481848

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 10, 2021
- Submitted: June 14, 2021
- Operation: Air carrier
- Aircraft: [N489WN](https://openairdocs.org/aircraft/N489WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33855
- Aircraft time: 54,253 hours, 32,244 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shield
- Condition: Corroded
- Location: Bs 500
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2021061481848

## Discrepancy

CORROSION ON AFT SHIELD AT FWD CARGO BAY BS500+5 RBL23 WL156. EVALUATED CORROSION ON SHIELD, FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN SRM & REQUIRES REPLACEMENT IAW SRM 51-10-02-0G-0.   REMOVED SHIELD BS 492-500A RBL 23 WL 156 IAW SRM 51-40-02-0G-0.   LOCATED DRILLED DEBURRED NEW SHIELD PER SRM 51-40-05-0G-0 DWG 143A0080.    INSTALLED FWD CARGO BAY AFT SHIELD BS 492-500A RBL 23 WL 156 IAW SRM 51-40-02-0G-0 DWG# 143A0080.

---
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.