Attachment 3
Table A3.3.
Facility Class 1: Operational and Training Facilities,
Category Group 13: Air Navigation and Traffic Aids Building
Category
Item and Allowance
Code
13612
Approach Lighting System
A configuration of 7 to 15 light bars located along the extended centerline of the
runway. These bars are typically elevated and have multiple fixtures that emit
white light to assist aircraft in approaching the end of the runway.
A Short Approach Lighting System (SALS) will normally be installed at the
approach end of an instrument runway served by a Precision Approach Radar
(PAR) or Instrument Landing System (ILS). A more extensive system may be
approved based on ceiling and visibility minimums derived under TM 95-226,
United States Standard for Terminal Instrument Procedures (TERPS). for large
transport aircraft where justification exists. A Medium Intensity Approach Lighting
System (MALS) may be used where a precision approach is not available or
justified.
13613
Precision Approach Path Indicator (PAPI)
A light system made up of red and white lights mounted on bars located near the
landing end of the runway. The purpose of the PAPI is to visually assist pilots on
their descent to the runway.
A Precision Approach Path Indicator (PAPI) may be provided when justified by
special requirements. The PAPI is designed to provide, by visual reference, the
same information that the glide slope unit of an instrument landing system provides
electronically. PAPIs provide a visual flight path within the approach zone, at a
fixed plane inclined at 2.5 to 4 degrees from the horizontal, which an approaching
fixed-wing aircraft pilot can visually utilize the PAPI for descent guidance during
an approach to landing, under either daytime or nighttime conditions on instrument
or visual runways.
13615
Rotary-Wing Parking Pad Lighting
A perimeter system of yellow lights around the edge of the rotary-wing
landing/parking pad. It may also include other systems, such as a landing direction
system which is a series of yellow lights placed along the extended landing pad
centerline, and an approach system which is a series of white lights that extend out
from the landing direction lights. Inset lights are a series of blue lights placed
within the landing surface to aid depth perception. Landing pad flood lights are
general illumination lights which are placed parallel to the normal approach.
Lighting will be provided for helipads to be used at night and during periods of poor
visibility.
A3-17
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