Widebody aircraft first officer reported performing a successful windshear escape maneuver; but note...

Narrative:

On the arrival we encountered a line of weather that was moving west to east and were given deviations to maneuver around the weather while lining up for downwind on runway 18R. ATIS was calling for +RA on the field with wind shear advisories in effect. The captain and I reviewed the wind shear procedure and precautions well in advance of arriving into the area. Once we were cleared for the approach to 18R; tower warned of possible wind shear on a 1 mile final to runway 18R. At the time we were on roughly a 4 mile final and planned to carry an additional 5 knots of airspeed. Winds were reported as 250 at 11 knots. At roughly a 1 mile final (300' AGL) we encountered about a 20 knot loss of airspeed along with a ground proximity warning system (GPWS) 'glideslope' alert. As the pilot flying (PF); I recognized the wind shear and immediately pushed the throttles up to correct the situation while performing the wind shear procedure.although I think we safely aviated through the problem and recovered safely on the second approach; here's what we both learned from the debrief. While performing the wind shear escape maneuver as the PF I said; 'wind shear' but did not make it 100% clear to the captain what I was doing. There was some miscommunication between the captain and I whether or not we were doing a wind shear escape or a go-around. We did not receive a 'windshear' warning from the GPWS.

Original NASA ASRS Text

Title: Widebody Aircraft First Officer reported performing a successful windshear escape maneuver; but noted a possible lack of communication with the Captain as to whether he was performing a windshear maneuver or a go-around.

Narrative: On the Arrival we encountered a line of weather that was moving west to east and were given deviations to maneuver around the weather while lining up for downwind on Runway 18R. ATIS was calling for +RA on the field with wind shear advisories in effect. The Captain and I reviewed the wind shear procedure and precautions well in advance of arriving into the area. Once we were cleared for the approach to 18R; Tower warned of possible wind shear on a 1 mile final to runway 18R. At the time we were on roughly a 4 mile final and planned to carry an additional 5 knots of airspeed. Winds were reported as 250 at 11 knots. At roughly a 1 mile final (300' AGL) we encountered about a 20 knot loss of airspeed along with a Ground proximity Warning System (GPWS) 'GLIDESLOPE' alert. As the Pilot Flying (PF); I recognized the wind shear and immediately pushed the throttles up to correct the situation while performing the wind shear procedure.Although I think we safely aviated through the problem and recovered safely on the second approach; here's what we both learned from the debrief. While performing the wind shear escape maneuver as the PF I said; 'wind shear' but did not make it 100% clear to the Captain what I was doing. There was some miscommunication between the Captain and I whether or not we were doing a wind shear escape or a go-around. We did not receive a 'Windshear' warning from the GPWS.

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.

Attributes
ACN	1416407
Time
Date	201701
Local Time Of Day	1801-2400
Place
Locale Reference	MEM.Airport
State Reference	TN
Environment
Flight Conditions	IMC
Aircraft 1
Make Model Name	Widebody Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Landing
Route In Use	STAR HOBRK
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Published Material / Policy Deviation - Speed All Types Inflight Event / Encounter Weather / Turbulence

Widebody aircraft first officer reported performing a successful windshear escape maneuver; but noted a possible lack of communication with the captain as to whether he was performing a windshear maneuver or a go-around.