# SDR DHL2004740002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2004
- Submitted: February 18, 2004
- Operation: Air carrier
- Aircraft: N740DH
- Make and model: Boeing 727-2Q9
- Registry model: [Boeing 727-2Q9](https://openairdocs.org/model/boeing-727-2q9) (OpenAirDocs)
- Aircraft serial: 21930
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Line
- Part number: 1711418CR0360
- Condition: Leaking
- Location: Hyd System
- Stage of operation: TO
- How discovered: C
- Nature of condition: K, J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL2004740002

## Discrepancy

B-SYSTEM BOTH LOW PRESSURE LIGHTS ILLUMINATED AT START OF TAKEOFF ROLL.  PRESS DROPPED 200 LBS.  OPENED BRAKE INTERCONNECT A-SYSTEM DROPPED TO 1 GALLON INTERCONNECT.  REMOVED AND REPLACED HYDRAULIC PRESSURE LINE NR 2 B-PUMP REF M/M 20-10-12, NO LEAKS NOTED.  P/N: 171141-8CR0360.  RTO, NO AIRSPEED, HAD JUST MOVED TRUST LEVER FORWARD WT: 136,620, NO AIRSPEED, -1C, AND PRESS ALTITUDE 5,000 FT.  NOT REQUIRED DUE TO NO AIRSPEED IAW M/M 5-51-121.

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