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Pc-12 pilot reported a hydraulic system anomaly during descent which resulted in a longer than normal landing gear extension cycle.
| Attributes | |
| ACN | 1552120 |
| Time | |
| Date | 201806 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | PC-12 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Descent |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Hydraulic Main System |
| Person 1 | |
| Function | First Officer |
| Qualification | Flight Crew Commercial Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor |
| Experience | Flight Crew Last 90 Days 100 Flight Crew Total 1700 Flight Crew Type 70 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
Upon beginning our decent we received a yellow hydraulics cas message in our PC12-47/east. We followed the procedure in the QRH by pulling the hydraulic control circuit breaker and slowed to 180 kts in case the gear began to sag. Before beginning final approach; we slowed to 110 kts and attempted to lower the gear normally. We received 3 green lights; but it took much longer than usual. Probably 30-60 seconds. After shutdown we reset the circuit breaker and everything worked normally again. This is the second such occurrence for this aircraft within 2 weeks.
Original NASA ASRS Text
Title: PC-12 pilot reported a hydraulic system anomaly during descent which resulted in a longer than normal landing gear extension cycle.
Narrative: Upon beginning our decent we received a yellow hydraulics CAS message in our PC12-47/E. We followed the procedure in the QRH by pulling the HYD CTL circuit breaker and slowed to 180 kts in case the gear began to sag. Before beginning final approach; we slowed to 110 kts and attempted to lower the gear normally. We received 3 green lights; but it took much longer than usual. Probably 30-60 seconds. After shutdown we reset the circuit breaker and everything worked normally again. This is the second such occurrence for this aircraft within 2 weeks.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.