Airman Certification Standards
ACS PH.VII.D
Lost Procedures
This reproduces published FAA reference text for study. It does not replace the current official FAA publication or regulation.
Knowledge
K1
Methods to determine position.
K2
Assistance available if lost (e.g., radar services, communication procedures).
K3
Rapidly deteriorating weather or impending fuel exhaustion.
Risk Management
R1
Collision hazards. 39
R2
Distractions, task prioritization, loss of situational awareness, or disorientation.
R3
Recording times over waypoints.
R4
When to seek assistance or declare an emergency in a deteriorating situation.
Skill
S1
Select an appropriate course of action.
S2
Use an appropriate method to determine position.
S3
Maintain an appropriate heading and climb as necessary.
S4
Identify prominent landmarks.
S5
Use navigation systems/facilities or contact an ATC facility for assistance. 40
Retrieved from ecfr.gov on July 17, 2026.