13.
Light Amplification by Stimulated Emission of Radiation (Laser) Operations and Reporting Illumination of Aircraft
13.1 Lasers have many applications. Of concern to users of the National Airspace System are those laser events that may affect pilots; e.g., outdoor laser light shows or demonstrations for entertainment and advertisement at special events and theme parks. Generally, the beams from these events appear as bright blue.green in color; however, they may be red, yellow, or white. Some laser systems produce light which is invisible to the human eye.
13.2 FAA regulations prohibit the disruption of aviation activity by any person on the ground or in the air. The FAA and the Food and Drug Administration (the Federal agency that has the responsibility to enforce compliance with Federal requirements for laser systems and laser light show products) are working together to ensure that operators of these devices do not pose a hazard to aircraft operators.
13.3 Pilots should be aware that illuminations from these laser operations is able to create temporary vision impairment miles from the actual location. In addition, these operations can produce permanent eye damage. Pilots should make themselves aware of where laser activities are being conducted and avoid the areas if possible.
13.4 Recent and increasing incidents of unautho-rized illumination of aircraft by lasers, as well as the proliferation and increasing sophistication of laser devices available to the general public, dictates that the FAA, in coordination with other government agencies, take action to safeguard flights from these unauthorized illuminations.
13.5 Pilots should report laser illumination activity to the controlling Air Traffic Control facilities, Federal Contract Towers or Flight Service Stations as soon as possible after the event. The following information should be included:
13.5.1 UTC Date and Time of Event.
13.5.2 Call Sign or Aircraft Registration Number.
13.5.3 Type Aircraft.
13.5.4 Nearest Major City.
13.5.5 Altitude.
13.5.6 Location of Event (Latitude/Longitude and/ or Fixed Radial Distance (FRD)).
13.5.7 Brief Description of the Event and any other Pertinent Information.
13.6 Pilots are also encouraged to complete the Laser Beam Exposure Questionnaire (See FIG ENR 5.7.2), and fax or email it, per the directions on the questionnaire, as soon as possible after landing.
13.7 When a laser event is reported to an air traffic facility, a general caution warning will be broad-casted on all appropriate frequencies every five mi-nutes for 20 minutes and broadcasted on the ATIS for one hour following the report.
PHRASEOLOGY.
UNAUTHORIZED LASER ILLUMINATION EVENT, (UTC time), (location), (altitude), (color), (direction).
EXAMPLE.
“Unauthorized laser illumination event, at 0100z, 8 mile final runway 18R at 3,000 feet, green laser from the southwest.”
FIG ENR 5.7.2
Laser Beam Exposure Questionnaire
Federal Aviation Administration Twentieth Edition
13.8
When laser activities become known to the FAA, Notices to Airmen (NOTAM) are issued to inform the aviation community of the events. Pilots should consult NOTAMs or the Special Notices Section of the Airport/Facility Directory for information regarding laser activities.
14.
Flying in Flat Light and White Out Conditions
14.1 Flat Light. Flat light is an optical illusion, also known as “sector or partial white out.” It is not as severe as “white out” but the condition causes pilots to lose their depth.of.field and contrast in vision. Flat light conditions are usually accompanied by overcast skies inhibiting any visual clues. Such conditions can occur anywhere in the world, primarily in snow covered areas but can occur in dust, sand, mud flats, or on glassy water. Flat light can completely obscure features of the terrain, creating an inability to distinguish distances and closure rates. As a result of this reflected light, it can give pilots the illusion that they are ascending or descending when they may actually be flying level. However, with good judgment and proper training and planning, it is possible to safely operate an aircraft in flat light conditions.
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