Cessna- 680A flight crew reported severe turbulence; loss of airspeed; and wind shear on a training flight while executing a go-around. The Captain took over the aircraft from the student after the go-around and then landed safely.
Synopsis
Cessna- 680A flight crew reported severe turbulence; loss of airspeed; and wind shear on a training flight while executing a go-around. The Captain took over the aircraft from the student after the go-around and then landed safely.
Narrative
On a passenger flight form ZZZ to ZZZ1 with stormy weather at both departure and arrival airports. I am on my second IOE tour with 6 landings. Departure took place with no significate events. On arrival into ZZZ1 storms had started popping up in the area. These storms had been forecast for XB:00 local time not XA:00. We flew the arrival without event and had the onboard radar on. We were able to avoid all cells on the arrival. Cleared for the visual approach of [Runway] XXL into ZZZ1 and made the turn over the reservoir. We loaded the RNAV XXL as a back up and proceeded in bound. Just prior to passing the FAF there was a report of windshear. After passing the FAF the wind was reported from the tower to be 265 [degrees] at 6 gusting 35. We executed a go-around as it was outside the crosswind limit for the Citation Latitude. As we began the go-around tower advised us to fly runway heading and climb to 8;000 ft. MSL. Turbulence quickly went from lite to severe and my Pilot In Command (PIC) requested 30 degrees left immediately as we were tracking straight toward virga rain that looked to be developing into a downdraft. Windshear alert did not go off but all flight controls suggested that we were in a downdraft and then an updraft. Airspeed and altitude were becoming difficult to control; much less wings level. Airspeed was no more then 180 knots at the start of the severe turbulence with the worst showing 140 knots at full throttle and a trend meter showing minus 40 knots. Vertical speed was barely holding 500 feet per minute. ATC advised us that we were indicating 8;600 ft. MSL shortly after our request to turn 30 degrees left. We attempted to return to 8;000 ft. and advised ATC of the severe turbulence. They requested that we maintain 8;000 ft. in able. As we flew east away from the virga conditions improved drastically and was able to resume level flight at 8;000 ft. The event lasted less then a minute in total. At this point my PIC who was Pilot Monitoring (PM) switch to COMM 2 to check the weather at ZZZ1 as well as ZZZ2 and I handled COMM 1 and coordinated with ATC to fly a modified holding pattern. The PIC returned to COMM 1 and updated me on the wind which had switched to a head wind for Runway XXL but was still a 6 knot gusting 35 knots. At this point we decided it prudent to have him fly the approach and I assume Pilot Monitoring duties. He flew the approach again with losses and gains of 20 knots and moderate turbulence to a landing.
Second reporter narrative
After uneventful en-route section of passenger flight from ZZZ to ZZZ1 we started down on arrival and ride deteriorated due to scattered storms in the area. I was acting at a Pilot In Command (PIC)/Check Airman Pilot crosswind limit. As we began the climb tower advised us to fly runway heading and maintain 8;000 ft. Turbulence quickly went from lite to severe and my and it was obvious Pilot Flying (PF) was struggling with aircraft control. I requested 30 degrees left immediately as we were tracking straight toward virga rain that looked to be developing into a downdraft. Windshear alert did not go off but aircraft behavior suggested that we were in a downdraft and then an updraft. Airspeed was approximately 180 knots at the start of the severe turbulence then deteriorating to 140 knots at full throttle and a negative speed trend vector. Vertical speed was struggling at 500 feet per minute climb. ATC advised us that we were indicating 8;600 ft. MSL shortly after our request to turn 30 degrees left. We attempted to return to 8;000 ft. and advised ATC of the severe turbulence. They requested that we maintain 8;000 ft. if able. As we flew east away from the virga conditions improved drastically and were Monitoring (PM) from the right seat. Besides the turbulence the arrival was uneventful. We got cleared for the visual approach to [Runway] XXL into ZZZ1 and were handed off to tower. Almost immediately based on the chatter on tower frequency it became evident the conditions at the field deteriorated quickly. Minute wind report was a wide range of direction swing (I recall 60 degree variation but close to direct crosswind form our right at the moment of report) and gusting to 39 kts. We immediately executed a go-around as it was well outside our able to resume level flight at 8;000 ft. The event lasted less than a minute in total. Once level and after completing appropriate checklist we requested updated wind info which now turned more toward a head wind for Runway XXL but was still a 6 knot gusting 35 knots. We were computed landing data and found it within safe parameters for another attempt. At this point we decided it was prudent to exchange PF/PM duties. I flew the approach again with losses and gains of 20 knots and moderate turbulence to a landing.Suggestions - Tower frequency was very busy at the moment. Having more leeway/ability to request an earlier left turn on the go-around might have prevented us from entering the area of severe turbulence. We didn't have an opportunity to get a word in earlier.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.