# SDR QXEA200701357

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2007
- Submitted: August 29, 2007
- Operation: Air carrier
- Aircraft: N426QX
- Make and model: Bombdr DHC8402
- Aircraft serial: 4154
- Aircraft time: 942 hours, 906 cycles
- System (JASC): [2997 · Hydraulic Power System Wiring](https://openairdocs.org/jasc/2997)
- Part: Contact
- Condition: Dirty
- Location: Relay
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA200701357

## Discrepancy

BTM - ON FLIGHT 2381, RETURNED TO GATE, WHEN TAXING OUT THE NR 3 HYDRAULIC PUMP CAUTION LIGHT ILLUMINATED.  MAINTENANCE CLEANED PL-4 RELAY CONTACTS AFTER REMOVING.  REINSTALLED RELAY, COMPLIED WITH PRESSURIZATION CHECK OF THE NR 3 HYDRAULIC SYSTEM.  OPERATIONAL CHECKS GOOD.  AIRCRAFT RETURNED TO SERVICE.  NO PARTS REPLACED.

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