# SDR HNAA2013052100303

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 7, 2013
- Submitted: June 7, 2013
- Operation: Air carrier
- Aircraft: N335EN
- Make and model: Dhav DHC8311
- Aircraft serial: 375
- Aircraft time: 42,693 hours, 46,224 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: BYLF51514
- Condition: Inoperative
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2013052100303

## Discrepancy

CIRCUIT BREAKER N5 TRIPPED AND WILL NOT RESET.  ACFT OVER PRESSURIZED AND UNABLE TO CONTROL EITHER PACK.   FOUND FLIGHT DECK TEMP SENSOR FAN BAD.  R & R TEMP SENSOR FAN.  OPS CHECKED GOOD.

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