c. For leaving aircraft, turn on the lights before the aircraft taxis onto the runway. Leave them
on until the aircraft leaves the traffic pattern or the pilot states he no longer needs them.
d. For arriving aircraft, turn on the lights before an instrument flight rule (IFR) aircraft begins
final approach or before a visual flight rule (VFR) aircraft enters the traffic pattern. Leave them on until
the aircraft taxis off the runway.
NOTE: Do NOT turn on the runway lights when a notice to airmen (NOTAM) closing the runway is
These lights are usually controlled in segments. Controlling them this way, you may use only
the portions needed to outline a specific route that you desire an aircraft to follow. They are to be turned
on before an aircraft taxis onto the taxiway (normally when taxi information is given). Leave the
taxiway lights on until the aircraft taxis off the taxiway.
SEQUENCED FLASHING LIGHTS (SFL)
These lights are a component of the approach light system. They cannot be operated when the
approach lights are turned off. Turn on the SFL when--
a. Requested by the pilot.
b. You think it necessary (if not contrary to the pilot's request).
c. The visibility is less than 3 miles and instrument approaches are being made to that runway.
RUNWAY END IDENTIFIER LIGHTS (REIL)
When separate on-off switches are provided, operate REIL as requested by the pilot and as
required by facility directives. Operate the REIL when the associated runway lights are lighted. Turn
the REIL off after an arriving aircraft has landed and after a leaving aircraft has left the traffic pattern.
Turn the REIL off also after it is determined that the lights are of no further use to the pilot.
VISUAL APPROACH SLOPE INDICATORS (VASIs).
The basic FAA VASI system is operated by photoelectric cells designed for continuous
operation and has no on-off switches. Other systems include those that are operated independently from