# SDR CHQA20000021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 31, 2000
- Submitted: August 21, 2000
- Operation: Air carrier
- Aircraft: N157CQ
- Make and model: Saab SF340A
- Registry model: [Saab SF340A](https://openairdocs.org/model/saab-scania-sf340a) (OpenAirDocs)
- Aircraft serial: 157
- Aircraft time: 23,706 hours, 26,404 cycles
- Engine: Ge CT75A2
- Propeller: Rotol R3894123F25
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Shutoff Valve
- Part number: 5056T88P01
- Condition: Dirty
- Location: Engine
- 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/CHQA20000021

## Discrepancy

AIR VALVE LIGHT ILLUMINATED IN FLIGHT, ICING CONDITIONS REPORTED, SO FLIGHT CREW RETURNED TO THE FIELD.  THE GARRETT VALVE WAS CLEANED AND THE CANNON PLUG RE-SECURED.  GROUND RUNS INDICATED ALL SYSTEMS OPERATING NORMALLY.

---
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.