# SDR FDEA202108172022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2021
- Submitted: August 19, 2021
- Operation: Air carrier
- Aircraft: [N590FE](https://openairdocs.org/aircraft/N590FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48505
- Aircraft time: 91,578 hours, 21,407 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Control Valve
- Condition: Leaking
- Location: Brake
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202108172022

## Discrepancy

ON CLIMBOUT AFTER RETRACTION RECIEVED A LEVEL 1 HYD  1 OFF. HSC SHUT OFF SYSTEM AND WE CONTINUED TO KIX  ON ARRIVVAL AFTER FLAPS IS RECIEVED HYD 1 FAIL.  PRESSURE AND QTY SYSTEM1 0 AND 0.3.   PERFORMED HYDRAULIC SYSTEM EXTERNAL LEAKAGE IAW MM 29-00-00-6 HYD LEAK FOUND ON LT INTEGRATED BRAKE CONTROL VALVE HYD PRESS INLET LINE B-NUT HAS LOOSE.  RETIGHTEN AND SECURED AND NO LEAKS ANYWHERE.  NR 1 ENG HYD PUMPS NEED TO BE REPLACED DUE TO HYD QTY 0.

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