# SDR AALA20100828TUL03

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2010
- Submitted: August 30, 2010
- Operation: Air carrier
- Aircraft: N192AN
- Make and model: Boeing 757223
- Aircraft serial: 32386
- Aircraft time: 34,667 hours, 9,022 cycles
- System (JASC): [2934 · Hydraulic Quantity Sensor](https://openairdocs.org/jasc/2934)
- Part: Transmitter
- Part number: 019012001
- Condition: Faulty
- Location: Hydraulic Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20100828TUL03

## Discrepancy

HNL - CREW REPORTED LEFT HYDRAULIC QUANTITY EICAS MESSAGE.  HYDRAULIC QUANTITY INDICATED ZERO.  EMERGENCY DECLARED RETURNED HNL LANDED WITHOUT INCIDENT.  REPLACED LEFT HYDRAULIC QUANTITY TRANSMITTER.  SYSTEM GROUND CHECKED NORMAL OPERATION.

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