# SDR DLL10990404

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N733DS](https://openairdocs.org/aircraft/N733DS), registered now
- Make and model: Lkheed 10113851
- Aircraft serial: 193C1224
- Engine: Rroyce RB21122B02
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Pump
- Part number: RB21122B02
- Condition: Bypassing
- Location: Nr 1 Engine
- Part time: 47,343 hours
- Stage of operation: CL
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLL10990404

## Discrepancy

EXCESSIVE OIL CONSUMPTION, NR 1 ENGINE BEGAN FLT WITH FULL OIL QTY.  AT TOP OF CLIMB, NR 1 ENG QTY WAS 15 QTS.  CONSUMED 2.5 QTS IN THE NEXT 1 HR 15 MIN, INDICATED AS LOW AS 9 QTS AFTER 3.5 HRS OF FLT.  REPLACED SCAVENGE/LUBE PUMP ASSEMBLY.  RAN ENGINE, OPS AND LEAK CHECK GOOD.

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