# SDR FDEA202607291051

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2026
- Submitted: July 29, 2026
- Operation: Air carrier
- Aircraft: [N583FE](https://openairdocs.org/aircraft/N583FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48421
- Aircraft time: 100,248 hours, 23,835 cycles
- System (JASC): [2911 · Hydraulic Power Accumulator, Main](https://openairdocs.org/jasc/2911)
- Part: Hydraulic System
- Condition: Failed
- Location: Zone 100
- Stage of operation: CL
- How discovered: O
- Nature of condition: M, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202607291051

## Discrepancy

FLIGHT STARTED WITH MEL 29-08-01-01 OPERATING WITH HYD MANUAL.  PASSING THROUGH APPROXIMATELY  5000 FT,  HYD 2L OFF ALERT CAME ON. SYS WENT TO 2R AND WITHIN 10 SECS IT FAILED ALSO. BOTH  RMPS WERE ON FROM T/O. DECLARED AN EMERGENCY & RETURNED TO MEMPHIS.  PERFORMED HSC RTS LIKE PREVIOUS WRI 29-11/7046, RAN THROUGH ALL OPS OF PUMPS/LRUS CONTROLLED BY THE HSC, NO FAULTS. FOLLOWED FIM TASK 29-10-06, RAN NR 2 ENGINE 30  MINS WITH NO FAULTS, HYD TEMPS  STARTED AT 46*C AT BEGINNING OF RUN & CLIMBED TO A MAXIUM OF 67*C DURING 30 MIN ENG RUN,  FIM TASK TEMP THRESHOLD IS 100*C BEFORE COMPONENTS  OR OTHER REQUIRMENTS NEEDED TO BE MET. ALL TESTS PASSED IAW FIM. PERFORMED OPS CHECKS IAW 29-12-00, NO FAULTS FOUND.

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