AEA CERTIFICATION CORE MAIN
EXAMINATION QUESTIONS AND ANSWERS
SURE A+
✔✔Change in Level of Service - ✔✔A SPECI will be taken within 15
minutes after the observer returns
to duty following a break in
observing coverage or
augmentation unless a record
observation is filed during that 15
minute period
✔✔1-Hourly Temperature and Dew Point - ✔✔T is the group indicator
• Ex: 2.6/M1.5= T0026101
✔✔6-Hourly Maximum Temperature - ✔✔1 is the group indicator
• Ex: 14.2°C= 10142
✔✔6-Hourly Minimum Temperature - ✔✔2 is the group indicator
• Ex: -2.1 °C= 21021
✔✔24-Hour Maximum and Minimum Temperature - ✔✔4 is the group indicator
, • Ex: 10.0° C & -1.5° C= 401001015
✔✔3-Hourly Pressure Tendency - ✔✔5 is the group indicator
• Ex: A steady increase of 3.2 hectopascals= 52032
✔✔PA (Formula) - ✔✔Station Elevation + (29.92 - Altimeter Setting) x 1000
✔✔DA (Formula) - ✔✔• PA + (120 x V1)
• V1= Standard Temp - Actual Temp
✔✔F° to C° (Formula) - ✔✔• F° - 32= ?
• ? divide by 1.8= C°
✔✔C° to F° (Formula) - ✔✔• C° x 1.8= ?
• ? + 32= F°
✔✔MPH to KTS (Formula) - ✔✔.866 x MPH= KTS
✔✔KTS to MPH (Formula) - ✔✔1.15 x KTS= MPH
✔✔Message Header - ✔✔Includes:
• TAF is the message identifier
• four-letter ICAO identifier
• AMD/COR/RTD
• Valid Period
✔✔FM - ✔✔Ex: FM221800
• This forecast line shall contain all elements (wind, visibility, weather, sky and any other
conditional groups) of a predominate forecast line.
✔✔BECMG - ✔✔Ex: BECMG 2218/2220
• The duration of the change shall not exceed two (2) hours.
• No more the 3 BECMG line in a row. Predominant line counts as (1) of the 3.
✔✔TEMPO - ✔✔Ex: TEMPO 2214/2220
• The period of time covered by a TEMPO group shall not exceed six hours.
✔✔Icing - ✔✔Format: 6IHHHT
• 6: is the group indicator
• I: Is the encoded type of icing predicted
• HHH: Enter the height of the base of the icing layer in hundreds of feet above ground
level
EXAMINATION QUESTIONS AND ANSWERS
SURE A+
✔✔Change in Level of Service - ✔✔A SPECI will be taken within 15
minutes after the observer returns
to duty following a break in
observing coverage or
augmentation unless a record
observation is filed during that 15
minute period
✔✔1-Hourly Temperature and Dew Point - ✔✔T is the group indicator
• Ex: 2.6/M1.5= T0026101
✔✔6-Hourly Maximum Temperature - ✔✔1 is the group indicator
• Ex: 14.2°C= 10142
✔✔6-Hourly Minimum Temperature - ✔✔2 is the group indicator
• Ex: -2.1 °C= 21021
✔✔24-Hour Maximum and Minimum Temperature - ✔✔4 is the group indicator
, • Ex: 10.0° C & -1.5° C= 401001015
✔✔3-Hourly Pressure Tendency - ✔✔5 is the group indicator
• Ex: A steady increase of 3.2 hectopascals= 52032
✔✔PA (Formula) - ✔✔Station Elevation + (29.92 - Altimeter Setting) x 1000
✔✔DA (Formula) - ✔✔• PA + (120 x V1)
• V1= Standard Temp - Actual Temp
✔✔F° to C° (Formula) - ✔✔• F° - 32= ?
• ? divide by 1.8= C°
✔✔C° to F° (Formula) - ✔✔• C° x 1.8= ?
• ? + 32= F°
✔✔MPH to KTS (Formula) - ✔✔.866 x MPH= KTS
✔✔KTS to MPH (Formula) - ✔✔1.15 x KTS= MPH
✔✔Message Header - ✔✔Includes:
• TAF is the message identifier
• four-letter ICAO identifier
• AMD/COR/RTD
• Valid Period
✔✔FM - ✔✔Ex: FM221800
• This forecast line shall contain all elements (wind, visibility, weather, sky and any other
conditional groups) of a predominate forecast line.
✔✔BECMG - ✔✔Ex: BECMG 2218/2220
• The duration of the change shall not exceed two (2) hours.
• No more the 3 BECMG line in a row. Predominant line counts as (1) of the 3.
✔✔TEMPO - ✔✔Ex: TEMPO 2214/2220
• The period of time covered by a TEMPO group shall not exceed six hours.
✔✔Icing - ✔✔Format: 6IHHHT
• 6: is the group indicator
• I: Is the encoded type of icing predicted
• HHH: Enter the height of the base of the icing layer in hundreds of feet above ground
level
