# SDR 2002UALA01103

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2002
- Submitted: July 9, 2002
- Operation: Air carrier
- Aircraft: [N353UA](https://openairdocs.org/aircraft/N353UA), registered now
- Make and model: Boeing 737322
- Aircraft serial: 24321
- Aircraft time: 41,332 hours, 22,328 cycles
- Engine: Ge CFM56*
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Pressure Switch
- Part number: 21SN4152
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2002UALA01103

## Discrepancy

LANDED DEN UNDER AMBER ALERT DUE TO A NR 1 ENGINE COWL ANTI-ICE WARNING LIGHT, WHICH CAUSED THE CREW TO SHUT DOWN THE ENGINE.  PRESSURE SWITCH 21SN41-52 FAILED.  MAINTENANCE REPLACED PRESSURE SWITCH, OPS CHECKS NORMAL.

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