Airman Certification Standards
ACS IR.VII.D
Approach with Loss of Primary Flight Instrument Indicators
Knowledge
Recognizing if primary flight instruments are inaccurate or inoperative, and advising ATC or the evaluator.
Possible failure modes of primary instruments and how to correct or minimize the effect of the loss. 23
Risk Management
Use of secondary flight displays when primary displays have failed.
Maintaining aircraft control.
Distractions, task prioritization, loss of situational awareness, or disorientation.
Skill
Advise ATC or the evaluator if unable to comply with a clearance.
Complete a non-precision instrument approach without the use of the primary flight instruments using the skill elements of the non-precision approach Task (see Area of Operation VI, Task A).
Use single-pilot resource management (SRM) or crew resource management (CRM), as appropriate. 24
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