# SDR ASAA2012110193226

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 1, 2012
- Submitted: November 5, 2012
- Operation: Air carrier
- Aircraft: [N563AS](https://openairdocs.org/aircraft/N563AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35180
- Aircraft time: 23,205 hours, 7,232 cycles
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Unknown
- Condition: Unknown
- Location: Cowl Valve
- Stage of operation: NR
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2012110193226

## Discrepancy

WHEN RT ENGINE ANTI-ICE IS TURNED ON,  COWL VALVE OPEN LIGHT COMES ON, THEN AFTER A FEW SECONDS FLICKER BETWEEN BRIGHT TO DIM OR STEADY BRIGHT.  THIS TAI INDICATES GREEN.  PERFORMED GROUND VERIFICATION OPS TEST 30-21-00-710-801.  ALL TESTS SUCCESSFUL.  ACFT GOOD FOR CONTINUE SERVICE.

---
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.