# SDR USAAF02003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2002
- Submitted: February 28, 2002
- Operation: Air carrier
- Aircraft: N855US
- 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: 11283
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Part number: NAS161210
- Condition: Broken
- Location: Hydraulic Sys
- Stage of operation: DE
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAAF02003

## Discrepancy

ORF-PHL - FLT 982 - DURING DESCENT, THE SYSTEM 1 HYDRAULIC LOW QUANTITY INDICATION ALERTED, FOLLOWED BY LOSS OF SYSTEM 1 HYDRAULICS.  THE LANDING GEAR WAS LOWERED USING THE ALTERNATE PROCEDURE AND THE AIRCRAFT LANDED WITHOUT INCIDENT.  MAINTENANCE REPLACED A BROKEN O-RING ON THE NR 2 ENGINE DRIVEN HYDRAULIC PUMP QUICK DISCONNECT.  (M)

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