# SDR HNAA2009020900048

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 3, 2009
- Submitted: February 9, 2009
- Operation: Air carrier
- Aircraft: N838EX
- Make and model: Dhav DHC8102
- Aircraft serial: 226
- Aircraft time: 43,366 hours, 48,678 cycles
- System (JASC): [7921 · Engine Oil Cooler](https://openairdocs.org/jasc/7921)
- Part: Oil Cooler
- Part number: 28E998
- Part serial: 3G920083
- Condition: Leaking
- Location: Nr 1 Engine
- Part time: 35,612 hours, 39,038 cycles
- Stage of operation: TO
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: C, E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2009020900048

## Discrepancy

NR 1 ENGINE OIL PRESSURE AT 20 PSI WITH NR 1 ENGINE PRESSURE CAUTION LIGHT ILLUMINATED ON TAKE OFF ROLL. (LIGHT/PIS ON FOR 4 TO 5 SECONDS).  FOUND OIL COOLER LEAKING, R&R OIL COOLER IAW MM 79-20-11. PERFORMED LOW OIL PRESSURE INSPECTION IAW MM 05-50-00.  GROUND RAN ACFT LEAK CHECK GOOD.

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