Airman Certification Standards
ACS AI.VII.M
Slip to a Landing (ASEL, ASES)
Knowledge
Purpose of and procedures for forward or side slip to a landing.
Concepts of energy management during a forward or side slip approach.
Effects of atmospheric conditions, including wind, on approach and landing performance.
Wind correction techniques during a forward or side slip. 51
Common errors related to this Task.
Risk Management
Selection of runway/landing surface, approach path, and touchdown area based on pilot capability, aircraft performance and limitations, available distance, and wind.
a. Crosswind
b. Windshear
d. Wake turbulence
e. Landing surface/condition
Planning for:
a. Rejected landing and go-around
b. Land and hold short operations (LAHSO)
Collision hazards.
Low altitude maneuvering, including stall, spin, or controlled flight into terrain (CFIT).
Distractions, task prioritization, loss of situational awareness, or disorientation.
Forward slip operations, including fuel flowage, tail stalls with flaps, and airspeed control.
Surface contact with the airplane’s longitudinal axis misaligned.
Unstable approach.
Skill
Complete the appropriate checklist(s).
Make radio calls as appropriate.
Plan and follow a flightpath to the selected landing area considering altitude, wind, terrain, and obstructions.
Select the most suitable touchdown point based on wind, landing surface, obstructions, and airplane limitations.
Position airplane on downwind leg, parallel to landing runway or selected landing surface.
Configure the airplane correctly.
As necessary, correlate crosswind with direction of slip and transition to sideslip as appropriate before touchdown.
Touch down at a proper pitch attitude, within 400 feet beyond or on the specified point, with no side drift, and with the airplane’s longitudinal axis aligned with and over the runway center/landing path.
Maintain a ground track aligned with the runway center/landing path.
Analyze and correct common errors related to this Task. 52
Retrieved from ecfr.gov on July 17, 2026.