# SDR AALA202604219608

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2026
- Submitted: April 22, 2026
- Operation: Air carrier
- Aircraft: [N321TG](https://openairdocs.org/aircraft/N321TG), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 68101
- Aircraft time: 8,780 hours, 3,329 cycles
- Engine: Cfmint LEAP1B25
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Shutoff Valve
- Part number: 32145525
- Condition: Failed
- Location: Nr 2 Anti Ice
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202604219608

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ENGINE NUMBER 2 ANTI-ICE CAUTION LIGHT ILLUMINATED. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT DFW. REMOVED AND REPLACED (PRSOV)-PRESSURE REGULATOR VALVE, PER AMM 36-11-04-401. PREFORMED OPS AND LEAK CHECK GOOD, ENGINE 2 ICE CAUTION MESSAGE NO LONGER ILLUMINATED NO FURTHER DEFECTS NOTED.

---
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.