# SDR ASAA2021022034147

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 2021
- Submitted: February 23, 2021
- Operation: Air carrier
- Aircraft: [N461AS](https://openairdocs.org/aircraft/N461AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36363
- Aircraft time: 26,071 hours, 8,318 cycles
- System (JASC): [3030 · Pitot/Static Anti-Ice System](https://openairdocs.org/jasc/3030)
- Part: Heater
- Condition: Malfunctioned
- Location: Pitot Tube
- Stage of operation: NR
- 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/ASAA2021022034147

## Discrepancy

AUX PITOT HEAT FAILED.  GROUNDED - YES.  GVI AND CYCLED F/O PROBE HEAT IND AND AUTO HEAT C/B'S AND GVI WINDOW AND PROBE HEAT MODULE P5-9 AND ACCESS WIRING AND CONNECTORS.  NO DEFECTS NOTED.  SYS TEST OF PROBE HEAT CHECKS OK REF B737-900 AMM 30-31-00-730-801.  AUX PITOT HEAT CHECKS OK REF AMM 30-31-00-730-801.

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