# SDR CALA2021091001548

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2021
- Submitted: September 10, 2021
- Operation: Air carrier
- Aircraft: [N76508](https://openairdocs.org/aircraft/N76508), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31639
- Aircraft time: 44,777 hours, 15,343 cycles
- System (JASC): [2930 · Hydraulic Indicating System](https://openairdocs.org/jasc/2930)
- Part: Indicator
- Condition: False Indication
- Location: Hyd System
- Stage of operation: CR
- 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/CALA2021091001548

## Discrepancy

DURING CRUISE NOTICED HYD QUANTITY LOSS OF APROX 1 PERCENT EVERY 5 MINUTES CONTACT TOMC BEFORE CLEARING ITEM. UNLOCKING CYCLED GEAR HANDLE, FLIGHT CONTROLS, INSPECTED SHREDDER VLV FOR RESERVOIR HEAD PRESSURE, CYCLED T/R , FIRST TIME WITH ELEC PUMPS, 2ND TIME WITH EDP, NO LEAK NOTED. HYD QTY NEVER CHANGED. REF. AMM TASK 29-10-00-810-812

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