# SDR DL72K991851

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 18, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N521DA](https://openairdocs.org/aircraft/N521DA), registered now
- Make and model: Boeing 727232
- Aircraft serial: 21472
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Condition: Failed
- Location: B Hyd Sys
- Component: AS19570C
- Stage of operation: CR
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL72K991851

## Discrepancy

UPON DEPARTURE FROM BOS, HYD SYS B LOST ALL PRESS AND QTY   WENT TO 1.5 GALS, FOLLOWED POM.  FOUND OUTBOARD MOTOR PUMP LEAKING.  REPLACED SAME.

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