# SDR AALA201812189033

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2018
- Submitted: December 18, 2018
- Operation: Air carrier
- Aircraft: N271AY
- Make and model: Airbus A330-323
- Registry model: [Airbus A330-323](https://openairdocs.org/model/airbus-a330-323) (OpenAirDocs)
- Aircraft serial: 323
- Aircraft time: 83,415 hours, 12,672 cycles
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Control Unit
- Part number: Z211H0001110
- Part serial: 3337
- Condition: No Test
- Location: Zone 100
- Part time: 82,383 hours, 11,864 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201812189033

## Discrepancy

HEAT CONTROL UNIT 10DH FAILED TO TEST.  MAINTENANCE REPLACED THE CONTROL UNIT IAW JC 33-0533-8-0007/001, AND PERFORMED A SATISFACTORY OPS CHECK.

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