Airworthy PrepCommercial Pilot Airplane test code
CA.IX.E.R1Emergency Operations: Engine Failure During Takeoff Before VMC (Simulated) (AMEL, AMES)
Commercial Pilot Airplane test standard, area of operation IX, task E
Written as ca.ix.e.r1 or CA.IX.E.R1 on your score report.
The FAA's wording
Potential engine failure during takeoff.
What it means
CA.IX.E.R1 is a risk management element in the Emergency Operations area of operation of the Commercial Pilot Airplane test standard. A risk management element is a hazard the FAA expects you to be able to spot and manage, and the written test can ask questions on it.
- CA
- Commercial Pilot Airplane ACS
- IX
- Area of operation IX: Emergency Operations
- E
- Task E: Engine Failure During Takeoff Before VMC (Simulated) (AMEL, AMES)
- R1
- Risk management element 1
Seeing it on your score report
Your Airman Knowledge Test Report lists a code for each area where you missed a question. Seeing CA.IX.E.R1 there means at least one of your wrong answers was on this element. If you are taking the practical test next, expect the examiner to ask about it. Retaking the written? Start with this code and the others on your report.
Sources: FAA-S-ACS-7B, Commercial Pilot for Airplane Category ACS (November 2023, effective May 31, 2024); FAA Airman Knowledge Testing Matrix (revised 9/25/26), p. 2.
Can be printed on 2 tests
- Commercial Pilot Airplane (CAX)
- Commercial Pilot Airplane Canadian Conversion (CCP)
Got more than one code on your report?
Paste them all into the free study planner and it groups them by subject, most missed first.