# SDR JBZA20230706001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 2, 2023
- Submitted: July 8, 2023
- Operation: Air carrier
- Aircraft: [N319RX](https://openairdocs.org/aircraft/N319RX), registered now
- Make and model: Airbus EC135 P3
- Registry model: [Airbus EC135 P3](https://openairdocs.org/model/airbus-helicopters-deutschland-ec135-p3) (OpenAirDocs)
- Aircraft serial: 1223
- Aircraft time: 4,810 hours, 10,438 cycles
- Engine: Pwa PW206B
- Engine time: 324 hours, 370 cycles
- System (JASC): [6240 · Main Rotor Indicating System](https://openairdocs.org/jasc/6240)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: O
- Nature of condition: J, G, R
- Precautionary procedure: B, R
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/JBZA20230706001

## Discrepancy

TRIPLE TACHOMETER INDICATIONS LOST FOR # 1 , #2 ENGINES AND MAIN ROTOR TRANSMISSION

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