# SDR FDEA202609091292

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2026
- Submitted: September 10, 2026
- Operation: Air carrier
- Aircraft: [N596FE](https://openairdocs.org/aircraft/N596FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48554
- Aircraft time: 100,721 hours, 22,154 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hydraulic Line
- Part number: AYK75515679
- Condition: Leaking
- Stage of operation: CR
- 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/FDEA202609091292

## Discrepancy

PDIS  596     29-02  1798     09SEP26 12:57 PHX  FACT  LEVEL 1 HYD 2 OFF ALERT ABOUT 1.5 HRS AFTER  TAKEOFF.  LEVEL 2 HYD 2 FAIL AFTER PARKING BRAKE  SET AT THE GATE.  EMERGENCY DECLARED.    PART 09SEP26 15:03   MC1  IDENTIFIED PARTS  HYD LINE ASSEMBLY W/TEE  MPN: AYK7551-5679          CPN: 2900083  QTY: 1    PART 09SEP26 15:04   MC1  ORDER PART  MPN: AYK7551-5679          CPN: 2900083  QTY: 1  MSN: 2272776    FACT 09SEP26 22:10   PHX  AMM: 20-10-01-2-0  OTHER: DOUGLAS DRAWING AYK7551  AMM: 71-00-00-2-2  JRH: 6-2  CANNIBALIZED AYK7551-5679 FROM AIRCRAFT 610,  INSTALLED CANNIBALIZED LINE AND PERFORM RYNGLOK  REPIAR PER AMM 20-1-01-2-0, PERFORM HYDRAULIC CHECK  ADN OPERATED FLIGHT CONTROLS WITH ENGINE POWER, NO  LEAKS NOTED ALL SYSTEMS CHECK GOOD.   CANNIBALIZED AYK7551-5679 FROM AIRCRAFT 610,                                      INSTALLED CANNIBALIZED LINE AND PERFORM RYNGLOK                                   REPIAR PER AMM 20-1-01-2-0, PERFORM HYDRAULIC CHECK                               ADN OPERATED FLIGHT CONTROLS WITH ENGINE POWER, NO                                LEAKS NOTED ALL SYSTEMS CHECK GOOD.

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