# SDR ASAA2014080808785

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 8, 2014
- Submitted: August 13, 2014
- Operation: Air carrier
- Aircraft: [N579AS](https://openairdocs.org/aircraft/N579AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35187
- Aircraft time: 28,489 hours, 8,498 cycles
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Pressure Switch
- Part number: 21SN4152
- Condition: Failed
- Location: Anti Ice Sys
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2014080808785

## Discrepancy

AT TOP OF DESCENT, WHEN POWER CAME TO IDLE, MASTER CAUTION ILLUMINATED AND COWL ANTI-ICE LIGHT FLICKERED FOR AN EXTENDED PERIOD OF TIME.  NR 2 COWL ANTI-ICE.  ACFT GROUNDED.  REPLACED THE TAI PRESSURE SWITCH ON THE NR 2 ENGINE IAW AMM 30-21-21. OPS CHECK GOOD IAW AMM 30-21-21-400-801, STEP "G".

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