Saturday, November 7, 2026 · Captain's Challenge
The Captain's Challenge.
Every evening, a harder question from the commercial, instrument and airline-level written exams. Only the best get this one. Each one answered, explained and cited, free. Tap your answer to see how you did, then come back tomorrow morning for the next one.
Capt. Mike: Tonight's Captain's Challenge. This one stumps commercial pilots. Tap your answer.
Compared with an RNP APCH, an RNP AR APCH (authorization required) is distinguished because it:
The answer
3May apply RNP values lower than 0.3 NM
Explanation
TC AIM COM 6.3.10: RNP AR APCH procedures "can be built with various levels of RNP lateral containment values", with "increasingly demanding aircraft certifications and operational approvals required when RNP values lower than 0.3 NM are applied". They are published as "RNAV (RNP)", and RF legs are mandatory under the Special Authorization (COM 6.4.1; AC 700-024).
Memory tip: RNP AR = 'RNAV (RNP)' on the chart, RNP below 0.3 NM possible, RF legs, special authorization.
Next: the morning warm-up at 9 am Pacific.
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