# SDR CALA2014012490223

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2014
- Submitted: January 24, 2014
- Operation: Air carrier
- Aircraft: N199UA
- Make and model: Boeing 747422
- Aircraft serial: 28717
- Aircraft time: 66,413 hours, 7,684 cycles
- Engine: Pwa PW4056
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: UK
- 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/CALA2014012490223

## Discrepancy

CREW REPORTS HEAT PITOT STATIC LT AUXILIARY EICAS MESSAGE.  NO STS MESSAGE AFTER ENG SHUT DOWN, NO MESSAGE IN CMC.  ENG GND RUN ACP AT ABOVE 50%N2, NO MESSAGES.  CMC GND TEST ACP, OK.

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