# SDR YYFA20120702001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 2, 2012
- Submitted: March 20, 2013
- Operation: Air carrier
- Aircraft: N120MN
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53093
- Aircraft time: 39,573 hours, 40,878 cycles
- System (JASC): [7711 · Engine Pressure Ratio (EPR)](https://openairdocs.org/jasc/7711)
- Part: Indication Sys
- Condition: Malfunctioned
- Location: Epr
- Stage of operation: TO
- How discovered: O
- Nature of condition: N
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YYFA20120702001

## Discrepancy

LEFT EPR GAUGE FAILED TO INDICATE NORMAL TAKE OFF POWER SETTING DURING TAKEOFF.  COMPLIED WITH EPR INDICATION SYS AND LEAK CHECKED IAW 77-11-01.  NO DEFECTS NOTED.  COMPLIED WITH NR 1 ENG RUN FOR EPR OPS CHECKS, ALL PARAMETERS NORMAL IAW AMM 71-00-00.

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