# SDR CALA2018100102027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2018
- Submitted: October 1, 2018
- Operation: Air carrier
- Aircraft: [N17719](https://openairdocs.org/aircraft/N17719), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28938
- Aircraft time: 64,389 hours, 22,521 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: B-Nut
- Condition: Loose
- Location: Hydraulic Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2018100102027

## Discrepancy

HYDRAULIC FLUID FLUID LEAKAGE HYD A LEAK AFTER TAKEOFF HYD AT 86 ON TAXI OUT HYD A AT 40 AFTER GEAR  UP THEN SLOWLY DECREASED FOUND PRESSURE LINE B NUT JUST FORWARD OF LEFT LANDING GEAR ACTUATOR LOOSE AND LEAKING.  ALSO FOUND LEFT LANDING GEAR UPLOCK ACTUATOR LINES LEAKING AT B NUTS.  TIGHTENED B NUTS OPERATED BOTH LANDING GEAR SEVERAL TIMES ALONG WITH FLAPS AND SPOILERS, NO LEAKS NOTED.  NO DECREASE IN QTY. AFTER OPS RAN BOTH ENGINES AND PRESSURIZED HYD SYSTEMS A AND B AND RAN FLAPS AND SLATS AND SPOILERS. NO LEAKS NOTED

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.