# SDR ASAA2016052916878

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2016
- Submitted: May 31, 2016
- Operation: Air carrier
- Aircraft: [N565AS](https://openairdocs.org/aircraft/N565AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35181
- Aircraft time: 36,482 hours, 11,081 cycles
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Warning Light
- Condition: False Activation
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016052916878

## Discrepancy

DURING CLIMB THROUGH 9000, COWL ANTI-ICE AND MASTER CAUTION LIGHTS ILLUMINATED ON THE NR 1 ENGINE. CYCLED ENGINE ANTI-ICE SWITCHES OFF.  LIGHT EXTINGUISHED.  ACCOMPLISHED QRH PROCEDURE, CLIMBING OUT OF 15000, TURNED ENGINE ANTI-ICE ON. OPERATED NORMAL. NO WARNING LIGHT.  ACFT GROUNDED. INSPECTED NR 1 ENGINE COWL ANTI-ICE VALVE. NO DEFECTS FOUND.  PERFORMED OPS CHECKED IAW AMM 30-21-11.  OPS CHECK OK. NO PREVIOUS HISORY FOR 30 DAYS.  GROUND VERIFICATION SUCCESSFUL.

---
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.