# SDR 2011FA0000159

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2011
- Submitted: March 7, 2011
- Operation: General aviation
- Aircraft: [N991AL](https://openairdocs.org/aircraft/N991AL), registered now
- Make and model: Lear 35A
- Registry model: [Lear 35A](https://openairdocs.org/model/gates-learjet-35a) (OpenAirDocs)
- Aircraft serial: 216
- Aircraft time: 14,336 hours, 10,577 cycles
- System (JASC): [2610 · Detection System](https://openairdocs.org/jasc/2610)
- Part: Sensor
- Part number: 12958010
- Part serial: 5016
- Condition: Failed
- Location: Duct Temp
- Part time: 14,336 hours, 10,577 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2011FA0000159

## Discrepancy

DUCT TEMP SENSOR FAILED TO ALLOW THE PRESSURIZARION SYS TO OVERTEMP THE DUCTING.

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