# SDR HNAA2016032900092

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2016
- Submitted: March 29, 2016
- Operation: Air carrier
- Aircraft: N335EN
- Make and model: Dhav DHC8311
- Aircraft serial: 375
- Aircraft time: 49 hours, 54,099 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Pressure Switch
- Part number: 7821004
- Part serial: 4224
- Condition: Inoperative
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2016032900092

## Discrepancy

DURING FLIGHT, NR 1 TORQUE INDICATIONS FLUCTUATING PLUS, MINUS 5 PCT WITH NR 1 BLEED HOT CT LIGHT ILLUMINATION.  SELECTED NR 1 BLEED OFF AND NR 2 TORQUE INDICATOR FLUCTUATING, 5 PCT WITH NR 2 BLEED HOT CT LIGHT ILLUMINATED, SEL NR 2 BLEED OFF.  TORQUE INDICATOR NORMAL AND CT LIGHTS EXTINGUISHED.  R & R BOTH AIR MOD BLEED AIR PSI SWITCHES, GROUND RAN ACFT, BLEEDS OPS CHECK GOOD IN AIR AND GROUND MOD.  NO BLEED HOT LIGHTS OR TORQUE FLUCTUATIONS NOTED OK FOR SERVICE.

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