7110.65

Question 1

Light gun signal steady green

Answer 1

a/c on the ground = “cleared for takeoff”
a/c in flight = cleared to land
vehicles = cleared to cross; proceed; go

Question 2

Light gun signal flashing green

Answer 2

a/c on the ground = cleared to taxi
a/c in flight = return for landing (to be followed by steady green)
vehicles = not applicable

Question 3

Light gun signal steady read

Answer 3

a/c on the ground = stop
a/c in flight = give way to other a/c and continue circling
vehicles = stop

Question 4

Light gun signal flashing red

Answer 4

a/c on the ground = taxi clear of the landing area or runway in use
a/c in flight = airport unsafe - do not land
vehicles = clear the taxiway/runway

Question 5

Light gun signal flashing white

Answer 5

a/c on the ground = return to starting point
a/c in flight = N/A
vehicles = return to starting point

Question 6

Light gun signal red and green

Answer 6

general warning

Question 7

When do you operate approach lights

Answer 7

Between sunset and sunrise

• serve the landing runway
• serve a runway to which an approach is being made but a/c will land on another runway

Between sunrise and sunset

• ceiling is less the 1000’ or prevailing vi is 5 miles or less
• landing runway served by the lights
• a runway serbed by the lights but a/c are landing on another runway
• a/p but landing will made ona runway served by the lights
• as requested by the pilot
• as you deem necessary, not contrary to pilot’s request

Question 8

What should you to with ALS in the interest of energy conservation?

Answer 8

Turn them off when not needed for a/c ops

Question 9

What are the ALS Intensity setting criteria for step 5 (night/day)

Answer 9

day = less than 1 mile
night = when requested

Question 10

What are the ALS Intensity setting criteria for step 4 (night/day)

Answer 10

day = 1 to but not including 3 miles
night = when requested

Question 11

What are the ALS Intensity setting criteria for step 3 (night/day)

Answer 11

day = 3 to but not including 5 miles
night = less than 1 mile

Question 12

What are the ALS Intensity setting criteria for step 2 (night/day)

Answer 12

day = 5 to but not including 7 miles
night = 1 to 3 miles inclusive

Question 13

What are the ALS Intensity setting criteria for step 1 (night/day)

Answer 13

day = when requested
night = greater than 3 miles

Question 14

When do you operate sequenced flashing lights?

Answer 14

when vis is less than 3 miles and instrument approaches are being made to the runway served by the associated ALS

• as requested by pilot
• as you deem necessary, if not contrary to pilot’s request