# SDR AALA951163

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N1440A
- 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: 11435
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Hyd Pump
- Part number: 862536
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: CR
- Nature of condition: K, J
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA951163

## Discrepancy

OKC-ORD - FLT 1210 - DURING CRUISE, EXPERIENCED HYDRAULIC QUANTITY LOSS ON SYSTEM 1 AND HYDRAULIC QUANTITY LOW MESSAGE DISPLAYED ON MFDU.  AC PROCEEDED TO ORD AND ACCOMPLISHED ALTERNATE LANDING GEAR AND FLAP EXTENSION, LANDING WITHOUT INCIDENT.  REPLACED NR 1 HYDRAULIC SYSTEM ENGINE DRIVEN PUMP DUE TO LEAKING O-RING AT PRESSURE LINE.  SERVICED HYDRAULIC SYSTEM AND ACCOMPLISHED LEAK AND GROUND CHECK WITH NO DEFECTS FOUND.  SYSTEM GROUND CHECKED NORMAL OPERATION.  (W)

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