# SDR MTNA070720140001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2014
- Submitted: July 16, 2014
- Operation: Air carrier
- Aircraft: [N812FX](https://openairdocs.org/aircraft/N812FX), registered now
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 404
- Aircraft time: 28,700 hours, 28,003 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Filter
- Condition: Leaking
- Location: Hyd System
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: H, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MTNA070720140001

## Discrepancy

DURING FLIGHT,  THE BLUE HYD SYSTEM LOW LEVEL INDICATION LIGHT ILLUMINATED.  30 MINUTES LATER THE GREEN SYS INDICATION LIGHT ILLUMINATED.  THE CREW DECLARED AN EMERGENCY & THE ACFT LANDED SAFELY.   AFTER TROUBLESHOOTING THE ACOUSTIC FILTER IT WAS FOUND TO HAVE AN EXTREME LEAK AT THE PUMP AREA.  THE MECHANIC REPLACED THE ACOUSTIC FILTER IAW JIC29-10-00 RAI 10080.  THE SYS CHECKED GOOD IAW JIC 29-00-00 PAD 10010.

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