Date: 201704
Local time of day: 1201-1800
Location: ZZZ.Airport, US
Flight conditions: VMC
Weather elements / visibility: Turbulence; Windshear; 10
Light: Daylight
Aircraft: Cessna 152
Operator: FBO
Operating under: Part 91
Flight plan: None
Mission: Training
Flight phase: Landing
ATC / advisory: CTAF ZZZ
Reporter organization: FBO
Reporter function: Pilot Not Flying; Instructor
Reporter qualification: Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Human factors: Situational Awareness
Second reporter function: Pilot Flying
Anomaly: Ground Event / Encounter Loss Of Aircraft Control; Ground Excursion Runway; Inflight Event / Encounter Weather / Turbulence
Detector: Person Flight Crew
When detected: In-flight
Result: General Maintenance Action
Contributing factors: Human Factors; Weather
Primary problem: Human Factors

Narrative: On final the student began to slip the airplane into the wind; however he had the wrong control inputs in. He had his ailerons to the right (away from wind) and rudder to the left (into wind) which is opposite of how it should be. This was a checkride so I was monitoring the airspeed and descent rate but did not comment as to test his abilities. As we were over the runway; the student let out the slip but did not fully let out the left rudder; causing us to land sideways. It was not a hard landing at all; no bouncing or porpoising; but it was sideways of the centerline. When we did touch down; with the nose wheel left of centerline; I did not want to add right rudder due to us having a speed of around 50 knots and the winds coming from the left. I felt at the time that this would not be a good decision to add right rudder and have it veer uncontrollably over to the right. Instead; I prepared for a roll into the grass. Immediately upon entering the grass I pulled the mixture and kept the nose wheel off the grass as well as stayed off the brakes. As soon as we came to a stop; I called a chief flight instructor on the comms in the plane and talked to him where he said to contact maintenance. I left everything as [it] was in the plane on the ground and asked maintenance if they needed anything from me; they said they just needed to inspect [for] damage. There was no damage; but the airplane was fully in the grass.


Second narrative: In a check ride it was a windy day and gusting more than 15 knots I tried to do a short field landing and wind was pushing as to the right of the runway and I did go around and after that the second try we came high I pulled the throttle back to lose altitude and I slipped the airplane. We made it and the airspeed was good for the aircraft but we land a little creepy to the left and we went to the grass. We closed the mixture and I used back pressure to keep the propeller away from the grass. We stopped in the grass safely nothing damages the aircraft or effect us as me or my instructor. I called the chief and my actual instructor and the safety manger and I follow what they need and that's all. I will practice more with my instructor about the crosswind landing technique. I should make a good decision before the flight. If it is so windy and gusting we shouldn't go.


Synopsis: C152 student pilot and instructor reported the student landed in a crab and lost directional control during the rollout resulting in a runway excursion.