Airman Certification Standards
ACS AA.VII.B
Powerplant Failure During Takeoff
Knowledge
The procedures used during a powerplant(s) failure on takeoff, the appropriate reference airspeeds, and the specific pilot actions required.
Operational considerations, including: airplane performance (e.g., sideslip, bank angle, rudder input), takeoff warning systems, runway length, surface conditions, density altitude, wake turbulence, environmental conditions, obstructions, and other related factors that could adversely affect safety.
Risk Management
Planning for a potential powerplant failure during takeoff considering operational factors (e.g., takeoff warning inhibit systems, other airplane characteristics, runway/takeoff path length, surface conditions, environmental conditions, obstructions, and land and hold short operations.
Briefing the plan for a powerplant failure during takeoff, in a crew environment.
Selection of the procedures or checklists to follow in an emergency.
Identifying the inoperative engine (AMEL, AMES).
Inability to climb or maintain altitude with an inoperative powerplant (AMEL, AMES).
Altitude, wind, terrain, and obstruction considerations in an emergency.
Low altitude maneuvering, including stall, spin, or controlled flight into terrain (CFIT).
Distractions, task prioritization, loss of situational awareness, or disorientation.
Skill
Following the powerplant failure, maintain positive airplane control and adjust the powerplant controls as recommended by the manufacturer for the existing conditions.
Establish a power-off descent approximately straight-ahead if the powerplant failure occurs after becoming airborne and before reaching an altitude where a safe turn can be made (ASEL, ASES) or the performance capabilities and operating limitations of the airplane do not allow the climb to continue (AMEL, AMES).
Continue the takeoff if the (simulated) powerplant failure occurs at a point where the airplane can continue to a specified airspeed and altitude at the end of the runway commensurate with the airplane’s performance capabilities and operating limitations (AMEL, AMES).
After establishing a climb, maintain the desired airspeed, ±5 knots. Use flight controls in the proper combination as recommended by the manufacturer, or as required, to maintain best performance and trim as required (AMEL, AMES).
Maintain the appropriate heading, ±5°, when powerplant failure occurs (AMEL, AMES).
Coordinate with crew, if applicable, and complete the appropriate checklist(s) following the powerplant failure. 51
Communicate with air traffic control (ATC) and the evaluator, as appropriate for the situation.
Retrieved from ecfr.gov on July 17, 2026.