# SDR CA991007015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Boeing 737217
- Engine: Pwa JT8D17A
- System (JASC): [2917 · Hydraulic Pressure Regulator, Main](https://openairdocs.org/jasc/2917)
- Part: Regulator
- Part number: 72909
- Condition: Leaking
- Location: Hydraulic System
- Part time: 28,215 hours
- Stage of operation: DE
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA991007015

## Discrepancy

(CAN) AFTER 4 HOURS OF FLIGHT, STARTED DESCENT, NR 1 HYDRAULIC PRESSURE LOW LIGHT ON.   EMERGENCY CHECK LIST CARRIED OUT, THEN THE NR 2 HYDRAULIC LOW PRESSURE LIGHT ON.   A HYDRAULIC PRESSURE WENT TO 35 PSI.  NO NOTICEABLE HYD FLUID LOSS. EMERGENCY DECLARED.  AIRCRAFT LANDED AND STOPPED ON RUNWAY.  REPLACED NR 2 ENGINE CASE RETURN FILTER, HYD RESEVOIR AIR PRESS REGULATOR.

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