# SDR CALA2026070917623

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2026
- Submitted: July 9, 2026
- Operation: Air carrier
- Aircraft: [N73259](https://openairdocs.org/aircraft/N73259), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30803
- Aircraft time: 72,500 hours, 26,905 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 849589
- Condition: Faulted
- Location: Hyd Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026070917623

## Discrepancy

HYDRAULIC PRESSURE INDICATION BELOW 2800 PSI SYSTEM A LOW PRESSURE LIGHT ON ENG 1 EDP IMMEDIATELY AFTER TAKE OFF. LIGHT STAYED ON.  PUMP TURNED OFF IAW CHECKLIST. PUMP SEEMED TO OPS NORMAL.  WHEN GEAR HANDLE PLACED UP DURING T/O,  LOW PRESSURE LIGHT FOR ELECTRIC PUMP ALSO FLASHED UNTIL GEAR WAS UP.  PREFORMED ENG IDLE RUN IAW AMM 71-00-00-700-801-F00 ON ENG 1 FOR 5 MINS, LOW PRESSURE LIGHT ON EDP 1 REMAINED ON FOR THE DURRATION OF ENGINBE RUN.   RAN ENGINE TO CONFIRM FAULT.  REMOVED ENG NR 1 HYD.  EDP IAW AMM 29-11-11-000-801-001.  INSTALLED NR 1 ENG EDP IAW AMM 29-11-11-400-801, UP TP STEP 3. I. TESTS.  ALSO CHKD NR 1 ENG CASE DRAIN FILTER FOR DEBRIS IAW AMM 29-11-11, & AMM 29-11-51, NONE FOUND, FILTER WAS CLEAN. R & R ENG 1 EDP CASE DRAIN FILTER ELEMENT IAW AMM 21-11-51-400-801. LEAK & OPS CHKD GOOD.  REPLACED QD FITTING ON PYLON IAW DWG 312A2100. COMPLETED INSTALLATION OF LINE IAW 29-11-11-400-801-001. INSTALLED LINES AT QD. PERFORMED CONDITION.

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