• CAA 1969 (Civil Aviation Act) Part IV
• CAR 1996 (Civil Aviation Regulation)
• ICAO ANNEX 14 Vol 1 Chapter 6
LEGISLATION
• ASD 401:
CONTROL AND DENOTING OBSTACLE
• ASD 403:
MARKING OF OBSTACLE
• ASD 404:
LIGHTING OF OBSTACLE
• Marking of Tower Structures for Day
only [and Good Weather].
• Horizontal Contrasting Bands
- Alternate White and Red
- Alternate White and Orange
• Specifies the type, location and
characteristics of obstacle lights
to be used in indicating the
various obstacles defined in ASD
401
TYPE
LOW
INTENSITY
MEDIUM
INTENSITY
HIGH
INTENSITY
TYPE CODE
COLOUR
INTENSITY
DCA/L/A
STEADY-BURNING
RED
10 cd
DCA/L/B
STEADY-BURNING
RED
32 cd
DCA/M/A
FLASHING WHITE
20000 cd
DCA/M/B
FLASHING RED
2000 cd
DCA/H/A
FLASHING WHITE
200000 cd
DCA/H/B
FLASHING WHITE
100000 cd
Type OL
LOW INTESITY
MEDIUM INTENSITY
HIGH INTENSITY
Height Tower
• As close as practicable to the top of the
object
• Where it is not possible or practicable to
locate obstacle lights at the top of tower,
the top lights shall be located at the
highest practicable point
< 45 m
MARKING IS REQUIRED
< 105 m
45 m < x < 150 m
Intermediate
DCA/M/A OL
MARKING IS NOT REQUIRED
< 52 m
45 m < x < 150 m
Intermediate OL
shall be alternately
DCA/L/B and
DCA/M/B
MARKING IS REQUIRED
Tower within OLS
Elevation of tower
15 km
Aerodrome
Reference
Point
Tower outside OLS
Height of tower.
DCA/M/B
4 km
Aerodrome
Reference
Point
Tower within OLS
Elevation > 45 m
• GET APPROVAL OF TOWER FROM AIR TRAFFIC SECTOR
APPROVAL OF • APPLICATION FORM DCA.OCL1 (FROM WEBSITE ; www.dca.gov.my)
OBSTACLE
• GET APPROVAL FROM AIRPORT STANDARD DIVISION FOR TOWER
OBSTACLE LIGHT INSTALLATION
APPROVAL OF
• APPLICATION FORM DCA OL/APL1 (FROM WEBSITE; www.dca.gov.my)
OBSTACLE
LIGHT
• 3 SETS OF DRAWING -LOCATION, LAYOUT AND ELEVATION DRAWING.
REQUIREMEN • BROCHURE OF PROPOSE OL
T OF
SUBMISSION
HOW GET THE FORM FROM WEB SITE?
Click OL/APL1
FOR OL
Click DCA.OCL1
FOR OLS
http://www.dca.gov.my/Division/Airport_Standard/Airport_Standard_forms.html
HOW TO ACCESS ASD 404 IN WEBSITE
http://www.dca.gov.my/Division/Airport_Standard/Airport_Standard_directive.html
Telecommunication Tower
Tree Tower
Telecommunication Tower less than 45m
Telecommunication Tower more than 45m
Daytime
Twilight
Night time