# SDR HNAA0800092

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2008
- Submitted: March 4, 2008
- Operation: Air carrier
- Aircraft: N808EX
- Make and model: Dhav DHC8102
- Aircraft serial: 299
- Aircraft time: 39,864 hours, 43,898 cycles
- System (JASC): [2932 · Hydraulic Pressure Sensor](https://openairdocs.org/jasc/2932)
- Part: Switch
- Part number: 3031174001
- Part serial: MX605142D
- Condition: Broken
- Location: Hydraulic Sys
- Part time: 39,864 hours, 43,898 cycles
- Stage of operation: CL
- 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/HNAA0800092

## Discrepancy

DURING GEAR RETRACTION ALL GEAR DOOR AMBER LIGHTS AND NR 2 HYD ISO VALVE CAUTION LIGHT ILLUMINATED.  HYDRAULIC QUANTITY AND PRESSURE WERE NORMAL.  THE GEAR DID NOT EXTEND WHEN GEAR HANDLE WAS SELECTED DOWN.  CREW PERFORMED ALTERNATE EXTENSION.  REPLACED NR 2 HYDRAULIC SYSTEM RESERVOIR AND ISOLATION SWITCH.

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