# SDR 9509812255

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N255US](https://openairdocs.org/aircraft/N255US), registered now
- Make and model: Boeing 727251
- Aircraft serial: 19974
- System (JASC): [2934 · Hydraulic Quantity Sensor](https://openairdocs.org/jasc/2934)
- Part: Quantity Trans
- Part number: EA1093A2408
- Condition: Failed
- Location: A Hyd Syst
- Stage of operation: CL
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9509812255

## Discrepancy

EN ROUTE TO YUL, A-SYSTEM HYDRAULIC QUANTITY DECREASED TO 1.0 GALLON DURING GEAR/FLAP RETRACTION.  AFTER RETRACTION WAS COMPLETED, QUANTITY INDICATED 1.5 GALLONS.  FLIGHT RETURNED TO DTW WITHOUT FURTHER INCIDENT.  MAINTENANCE REPLACED A-SYSTEM QUANTITY TRANSMITTER AND SERVICED TO 4.2 GALLONS.  LEAK AND OPERATIONAL CHECK NORMAL.

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