# SDR AALA20030306

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2003
- Submitted: April 16, 2003
- Operation: Air carrier
- Aircraft: N1426A
- 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: 11411
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Damaged
- Location: Hyd System
- Stage of operation: CR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20030306

## Discrepancy

DTW - FLT 1461 - EN ROUTE DCA-ORD, EXPERIENCED LOSS OF NR 1 HYDRAULIC SYSTEM FLUID IN FLIGHT.  COMPLIED WITH ALL RELEVANT EMERGENCY PROCEDURES.  GEAR WAS EXTENDED USING ALTERNATE LANDING GEAR CONTROL.  LANDED DTW WITHOUT INCIDENT.  REPLACED O-RING ON NR 1 HYDRAULIC PUMP FOR NR 2 ENGINE PRESSURE LINE.  BAD O-RING.  PERFORMED OPERATIONAL AND LEAK CHECK.  OPERATIONS AND LEAK CHECK GOOD. RESERVICED NR 1 HYDRAULIC SYSTEM.  PERFORMED MAIN LANDING GEAR SELECTOR VALVE RESET PROCEDURE.  SYSTEM GROUND CHECKED NORMAL OPERATION.  (M)

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