# SDR HNAA0400121

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2004
- Submitted: September 14, 2004
- Operation: Air carrier
- Aircraft: N810EX
- Make and model: Dhav DHC8102
- Aircraft serial: 308
- Aircraft time: 31,825 hours, 35,121 cycles
- System (JASC): [7921 · Engine Oil Cooler](https://openairdocs.org/jasc/7921)
- Part: Oil Cooler
- Part number: 28E997
- Part serial: 900238
- Condition: Leaking
- Location: Nr 2 Engine
- Part time: 31,835 hours, 35,132 cycles
- Stage of operation: TO
- How discovered: V
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA0400121

## Discrepancy

FLIGHT 3796 HAD TO ABORT TAKEOFF DUE TO RECEIVING THE NR 2 ENGINE OIL PRESSURE LIGHT.  MAINTENANCE FOUND THE NR 2 OIL COOLER TO BE LEAKING.  UNIT WAS REMOVED AND REPLACED.  AIRCRAFT RUN COMPLIED WITH, LEAK CHECK GOOD.  AIRCRAFT RETURNED TO SERVICE.

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