# SDR HDNA201502250006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2015
- Submitted: February 26, 2015
- Operation: Air carrier
- Aircraft: [N155UM](https://openairdocs.org/aircraft/N155UM), registered now
- Make and model: Urocop EC 155B
- Registry model: [Urocop EC 155B](https://openairdocs.org/model/eurocopter-ec-155b) (OpenAirDocs)
- Aircraft serial: 6934
- Aircraft time: 1,217 hours
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Indication Sys
- Part number: B19030LC04
- Part serial: 6914
- Condition: False Indication
- Location: Cockpit
- Part time: 1,217 hours
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HDNA201502250006

## Discrepancy

DURING TAKEOFF WHILE CLIMBING, TRANSMISSION OIL PRESS WAS FLUCTUATING BETWEEN 1.4 & 3.8 BARS.  THROUGH EXTENSIVE TROUBLESHOOTING DETERMINED IT WAS THE VEMD.

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