# SDR HNAA2025120800854

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2025
- Submitted: December 8, 2025
- Operation: Air carrier
- Aircraft: [N647AE](https://openairdocs.org/aircraft/N647AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145222
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Shutoff Valve
- Part number: 32158862
- Condition: Faulted
- Location: Zone 400
- Part time: 7,777 hours, 8,786 cycles
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2025120800854

## Discrepancy

CRUISING LEVEL AT 280 KTS ANTI ICE/STAB A/ICE FAIL DISPLAYED, RESET & FAIL WENT AWAY. THEN WING A/ICE FAIL, RESET & FAIL WENT AWAY. THEN E-1 A/ICE FAIL DID NOT GO AWAY AFTER RESET TILL ON APPROACH.    R & R ENGINE PRSOV IRT AMM 36-11-05. LEAK CHECK OK.   PERFORMED OPS CHECK OF ANTI ICING SYSTEM IAW AMM 30-00-00. NO DEFCTS NOTED. OPS CHECK OF BLD VLV GOOD IAW AMM 36-00-00

---
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.