# SDR M3XA20210506004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2021
- Submitted: May 6, 2021
- Operation: Air carrier
- Aircraft: [N135WL](https://openairdocs.org/aircraft/N135WL), registered now
- Make and model: Urocop EC 135 P2
- Registry model: [Urocop EC 135 P2](https://openairdocs.org/model/eurocopter-deutschland-ec-135-p2) (OpenAirDocs)
- Aircraft serial: 1083
- Aircraft time: 4,442 hours, 17,964 cycles
- Engine: Pwa PW206B2
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Bypass Valve
- Part number: L792M2002102
- Part serial: 72781
- Condition: Malfunctioned
- Location: Nr 1 Engine Oil
- Part time: 4,442 hours, 17,964 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/M3XA20210506004

## Discrepancy

PILOT REPORTED IN CRUISE FLIGHT THAT THE #1 ENGINE OIL TEMPERATURE WAS HIGH.  MECHANIC REPLACED #1 ENGINE OIL BYPASS VALVE.

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