# SDR 4EZF202511050001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 4, 2025
- Submitted: November 6, 2025
- Operation: Air carrier
- Aircraft: [N304AG](https://openairdocs.org/aircraft/N304AG), registered now
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 418
- Aircraft time: 45,276 hours, 53,607 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 4018502
- Part serial: JS30
- Condition: Faulted
- Location: Hyd Sys
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: L, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/4EZF202511050001

## Discrepancy

ON SELECTION OF LANDING GEAR DOWN, HYDRAULIC LIGHT ILLUMINATED. MAIN HYDRAULIC PRESSURE INDICATED 0 PSI. ONLY NOSE LANDING GEAR SHOWED DOWN & LOCKED, 1 GREEN, CREW DECIDED NOT TO LAND IN ARUBA (TNCA) & RETURN TO MAINTENANCE BASE - CURACAO (TNCC).  PERFORMED INSPECTION OF THE HYDRAULIC SYSTEM IAW AMM 29-00-00. PERFORMED OPS CHECK OF THE MOTOR-DRIVEN PUMP IAW AMM 29-10-10-05-P1. PERFORMED FUNCTIONAL TEST OF THE EXTENSION AND RETRACTION OF LANDING GEARS IAW AMM 32-30-00-05 SATISFACTORY.  AS PRECAUTION THE HYDRAULIC MOTOR PUMP WAS REPLACED IAW AMM 29-10-10-04.

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