# SDR B4VR2021081900001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2021
- Submitted: August 19, 2021
- Operation: General aviation
- Filed by: [CAE Oxford Aviation Academy Phoenix Inc, repair station B4VR470K](https://openairdocs.org/faa-repair-station/B4VR470K/cae-oxford-aviation-academy-phoenix-inc.md) (OpenAirDocs)
- Aircraft: [N28115](https://openairdocs.org/aircraft/N28115), registered now
- Make and model: Piper PA-44-180
- Registry model: [Piper PA-44-180](https://openairdocs.org/model/piper-pa-44-180) (OpenAirDocs)
- Aircraft serial: 4496515
- Aircraft time: 587 hours
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Line
- Part number: 837744139
- Condition: Leaking
- Location: Hyd System
- Part time: 587 hours
- Stage of operation: LD
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/B4VR2021081900001

## Discrepancy

PILOT SQUAWK: LANDING GEAR FAILURE. USED EMERGENCY GEAR EXTEND. AFTER TAKEOFF, WE GOT 3 RED WHEN WE PUT THE GEAR UP. WE TRIED AGAIN AND IT WENT UP. FAILED WHEN WE TRIED TO PUT GEAR DOWN. CAS MESSAGE: HYDRAULIC PUMP ON, GEAR SYS. CORRECTIVE ACTION. REPLACED HYDRAULIC LINE WITH NEW P/N 83744-139 IAW PA44-180 AMM 29-10-00. TORQUED FITTING AT HYDRAULIC PUMP FOR LANDING GEAR, CLEANED, SERVICED AND CYCLED LANDING GEAR TO PURGE AIR FROM SYSTEM IAW PIPER PA44-180 AMM 12-10-00 AND 32-30-00.

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