Instrument Rating Exam · Practice

On an ILS Cat I approach in −25°C conditions, AIP ENR 1.5 requires the pilot to:

• A.Increase the DA by a standard 50 ft cold weather buffer regardless of the actual temperature
• B.Apply the cold temperature altitude correction to the DA to obtain the Altimeter Operating Minimum (AOM)
• C.Use the published MDA instead of the DA whenever the temperature is below 0°C
• D.Make no adjustment, because ILS glideslope guidance is unaffected by temperature