 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
DA40 pilot reported executing an evasive maneuver to avoid wake turbulence from a C17 landing on an adjacent runway.
| Attributes | |
| ACN | 1469822 |
| Time | |
| Date | 201708 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ILM.Airport |
| State Reference | NC |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | DA40 Diamond Star |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Final Approach |
| Route In Use | Vectors Visual Approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Globemaster (C-17) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Landing |
| Person 1 | |
| Function | Single Pilot |
| Qualification | Flight Crew Commercial Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 15 Flight Crew Total 501 Flight Crew Type 176 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Clearance |
Narrative:
On final approach; cleared for a visual to runway 06 via radar vectors; number 1 to land. While tracking the RNAV 6 waas approach; a C17 was cleared for a low approach down to 1600 ft from my right tracking runway 35. Winds were out of the southeast at 11 knots; from 090-120 at my altitude; aka my 3-4 o'clock; which was where the C17 was now located. I was cleared to land prior to the C17 being approved for the low approach and descent to 1600 feet. I had been sequenced downwind; more than 10 miles from the field. Due to light chop in the descent encountered at 5000 ft and below; I slowed to 90 knots IAS on final. The C17 from the right looked as though it would overtake the intersection of 06/35 prior to my arrival. Thus; their wake descending behind them from 1600 feet to the ground; and blowing towards me at angle from their machine to the ground. I broke right and ascended into the wind towards the beach. The most dangerous flight condition I have ever encountered. Surely a student pilot may have followed this clearance and crashed.
Original NASA ASRS Text
Title: DA40 pilot reported executing an evasive maneuver to avoid wake turbulence from a C17 landing on an adjacent runway.
Narrative: On final approach; cleared for a visual to Runway 06 via radar vectors; Number 1 to land. While tracking the RNAV 6 WAAS approach; a C17 was cleared for a low approach down to 1600 ft from my right tracking runway 35. Winds were out of the southeast at 11 knots; from 090-120 at my altitude; aka my 3-4 o'clock; which was where the C17 was now located. I was cleared to land prior to the C17 being approved for the low approach and descent to 1600 feet. I had been sequenced downwind; more than 10 miles from the field. Due to light chop in the descent encountered at 5000 ft and below; I slowed to 90 knots IAS on final. The C17 from the right looked as though it would overtake the intersection of 06/35 prior to my arrival. Thus; their wake descending behind them from 1600 feet to the ground; and blowing towards me at angle from their machine to the ground. I broke right and ascended into the wind towards the beach. The most dangerous flight condition I have ever encountered. Surely a student pilot may have followed this clearance and crashed.
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.