# SDR AALA202105049008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 3, 2021
- Submitted: May 5, 2021
- Operation: Air carrier
- Aircraft: [N829NN](https://openairdocs.org/aircraft/N829NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33210
- Aircraft time: 34,168 hours, 13,745 cycles
- System (JASC): [3030 · Pitot/Static Anti-Ice System](https://openairdocs.org/jasc/3030)
- Part: Module
- Condition: Faulted
- Location: Pitot Heat
- Stage of operation: DE
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202105049008

## Discrepancy

AIRCRAFT WAS GROUNDED: CAPTAINS AIRSPEED UNRELIABLE DURING ICING CONDITIONS. 60 KNOTS VARIATION WITH AIRSPEED AURAL WARNING. EXITED ICING CONDITIONS AIRSPEED INDICATIONS RETURNED TO NORMAL AFTER 2 MINUTES, REPLACED WINDOW / PITOT HEAT MODULE PER AMM 30-41-41.

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