# SDR WX0A2016051673153

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2016
- Submitted: May 16, 2016
- Operation: Air carrier
- Aircraft: N409NV
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 49574
- Aircraft time: 67,953 hours, 41,063 cycles
- System (JASC): [7711 · Engine Pressure Ratio (EPR)](https://openairdocs.org/jasc/7711)
- Part: Epr System
- Condition: Fluctuates
- Location: Lt Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WX0A2016051673153

## Discrepancy

ON TAKEOFF & DURING CLIMB LT ENG EPR N1 & N2 INDICATIONS FLUCTUATED.  EPR FLUCTUATED + - .1 & N1 & N2 VISIBLE CHANGED AS WELL.  FOLLOWED QRH 72.08 ENG SURGING POWER WAS BROUGHT BACK TO 1.6 EPR & SURGING STILL CONTINUED.  PERFORMED POWER PLANT RUN UP & PARAMETER CHECK FORM M739 WJP 7487.  ACCOMPLISHED WORK SCOPE IAW WO 299250, 299249, 299159 & 299157 CHECKED NORMAL ON ENG RUN UP MOC CONCURRENCE OBTAINED.

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