# SDR AALA980413

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N1471G
- Make and model: Fokker F.28 MK 0100
- Registry model: [Fokker F.28 MK 0100](https://openairdocs.org/model/fokker-f-28-mk-0100) (OpenAirDocs)
- Aircraft serial: 11507
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Defective
- Location: Rt Engine
- Stage of operation: CR
- Nature of condition: J, K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA980413

## Discrepancy

SAT - FLT 249 - DURING CRUISE, NR 1 HYDRAULIC QTY DEPLETED TO ZERO.  CREW FOLLOWED ALTERNATE PROCEDURES TURNING OFF SYSTEM NR 1 PUMPS ON ENGINES 1 AND 2.  LANDING GEAR ALTERNATE PROCEDURES WERE FOLLOWED AND THE AIRCRAFT LANDED SAT WITH NO FURTHER INCIDENT.  REPLACED LEAKING O-RING ON RIGHT ENGINE DRIVEN HYDRAULIC PUMP SYSTEM NR 1.  SERVICED HYDRAULIC SYSTEM AND RAN ENGIEN WITH NO FURTHER LEAKS NOTED.  SYSTEM LEAK CHECKED AND GROUND CHECKED NORMAL OPERATION.  (M)

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