# SDR AALA202204079260

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2022
- Submitted: April 7, 2022
- Operation: Air carrier
- Aircraft: [N943NN](https://openairdocs.org/aircraft/N943NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31177
- Aircraft time: 24,573 hours, 9,393 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Sensor
- Part number: 21SN4152
- Condition: Fault Message
- Location: Zone 400 - Nac/P
- Stage of operation: TO
- How discovered: V
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202204079260

## Discrepancy

AIRCRAFT WAS GROUNDED: LEFT COWL ANTI-ICE LIGHT ILLUMINATED ON TAKE OFF, 24K POWER. REJECTED AT 50 KNOTS. **SUPPLEMENTAL REPORT FOR AALA202204047755: SECOND ABORTED TAKE OFF (AALA202204079660), (AALA202204078887) ON A FERRY FLIGHT ON APRIL 5. TROUBLE SHOOTING PER FIM 30-21-00-810-809. REMOVED AND REPLACED LEFT ENGINE COWL TAI VALVE (AALA202204047755) PER AMM 30-21-11 AND REMOVED AND REPLACED LEFT ENGINE ANTI-ICE PRESSURE SENSOR PER 30-21-21.** (CLOSED)

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