Federation of Malysia ≠ EDICT OF GOVERNMENT ± In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. ASD 402 (2007) (English): Control Of Obstacle At Aerodrome AIRPORT STANDARDS DIRECTIVE 402 [ASD 402] CONTROL OF OBSTACLES AT AERODROMES AIRPORT STANDARDS DIVISION DEPARTMENT OF CIVIL AVIATION MALAYSIA This Airport Standards Directive is published and enforced by the Director General of Civil Aviation Malaysia under the provision of the Section 24o Civil Aviation Act 1969 (Act 3). © Department of Civil Aviation Malaysia 2007 First published July 2007 Printed and distributed by Department of Civil Aviation Malaysia. Level 1 Block Podium B Lot 4G4 Precinct 4, No. 27 Persiaran Perdana, Federal Government Administration Centre 62618 PUTRAJAYA i AMENDMENT RECORD Amendment Amendment Incorporated by Incorporated on Number Date ii CONTENTS Page INTRODUCTION 1 OBJECTIVE 1 OBSTACLE AT AERODROMES 1 OBSTACLES RESTRICTION RULES 2 OBSTACLES ON RUNWAY STRIPS 2 OBSTACLES ON RESA 3 OBSTACLES ON TAXIWAY STRIPS 4 OBSTACLES WITHIN TAXIWAY CLEARANCE DISTANCE 4 OBSTACLES IN PROXIMITY OF AIRCRAFT STANDS 5 OBSTACLES ON CLEARWAY 5 OBSTACLES ON LOCALIZER CRITICAL / SENSITE AREAS 5 OBSTACLES ON GLIDE PATH CRITICAL / SENSITIVE AREAS 6 OBSTACLES WITHIN OBSTACLE PROTECTION ZONE 7 OBSTACLES WITHIN OBSTACLE FREE ZONE 7 OBSTACLES WITHIN OBSTACLE LIMITATION SURFACES 10 FRANGIBILITY 12 HEIGHT LIMITATIONS 13 SHEILDING 13 AERONAUTICAL STUDY 14 DEVIATIONS 14 iii INTRODUCTION 1. All fixed and mobile objects, or parts thereof, that are located on an area intended for surface movement of aircraft or that extend above a defined surface intended to protect aircraft in flight, at an aerodrome, are obstacles. 2. However, certain airport equipments and installations, because of their air navigation functions, must inevitably be so located and/or constructed that they are obstacles. 3. In addition, vehicles and aircraft, generally termed as transient objects, due to operational requirements need to positioned close to the runway and other vehicle and servicing equipments on the movement area, are regarded as obstacles as well. 4. This Directive has been written in general terms. Specific advice could be obtained from the Authority at: Department of Civil Aviation Airport Standards Division Level 1 Block Podium B 4G4 Precinct 4 No. 27 Persiaran Perdana Federal Government Administration Centre 62618 Putrajaya. Phone: 03-88714000 Fax : 03-88714335 OBJECTIVE 5. This Airport Standards Directive is intended to supplement ASD 401 : Control and Denoting Obstacles. 6. This Directive outlines the application of rules, instructions and practices pertaining to the restrictions of obstacles at aerodromes to which aerodrome operator shall be informed and oblige to comply. OBSTACLES AT AERODROMES 7. Objects regarded as obstacles are as follows: (i) Fixed objects, whether temporary or permanent, or parts thereof, that are located on an area intended for the surface movement of aircraft are obstacles. (ii) Mobile objects, whether temporary or permanent, or parts thereof, that are located on an area intended for the surface movement of aircraft are obstacles. (iii) Fixed objects, whether temporary or permanent, that are extended above defined surfaces intended to protect aircraft in flight are obstacles. (iv) Fixed or mobile objects that penetrate the obstacle limitation surfaces are obstacles. OBSTACLE RESTRICTION RULES 8. No fixed objects or mobile objects that may constitute as obstacles shall be permitted - (i) to be located and/or constructed a. on a runway strip; b. on a runway end safety area; c. on a taxiway strip; d. within a taxilane clearance distance; e. adjacent to aircraft stand; and f. on a clearway. (ii) to be located and/or constructed within a. ILS Localizer critical areas; and b. ILS Glide Path sensitive and critical areas (iii) to be extended into the Obstacle Protection Surfaces; (iv) to be extended into the Obstacle Free Zone; and (v) to be extended above the Obstacle Limitation Surface. - except when, such fixed objects or mobile objects satisfies conditions specified under the following paragraphs. OBSTACLES ON RUNWAY STRIPS 9. No fixed objects or mobile objects that may constitute as obstacles shall be permitted to be located and/or constructed on a runway strip, other than equipment and installations required for air navigation purposes and shall be frangible and mounted as low as possible. 10. Fixed objects or mobile objects satisfying conditions specified above, shall be restricted as follows – (i) Zone I : Only visual aids required for air navigation purposes, except wind direction indicator, are allowed in areas defined within - a. 77.5 m of the runway centre line where the code number is 4 and the code letter is F; or b. 60 m of the runway centre line where the code number is 3 or 4; or c. 45 m of the runway centre line where the code number is 1 or 2. (ii) Zone II : Other navigational aids, including wind direction indicator, are allowed in areas beyond - a. 77.5 m of the runway centre line where the code number is 4 and the code letter is F; or b. 60 m of the runway centre line where the code number is 3 or 4; or c. 45 m of the runway centre line where the code number is 1 or 2. (iii) Zone III : Any other objects, including supporting equipment and installations for navigational aids, shall be located outside runway strips. OBSTACLES ON RUNWAY END SAFETY AREA [RESA] 11. No fixed objects or mobile objects that may constitute as obstacles shall be permitted to be located and/or constructed on a RESA, other than equipment and installations required for air navigation purposes and shall be frangible and mounted as low as possible. 12. Fixed objects or mobile objects satisfying conditions specified above, shall be restricted as follows – (i) For a precision approach runway category I, II and III : Only aids required for air navigation purposes are allowed in areas within 240 m from the end of runway strip and within - a. 60 m of the extended runway centre line where the code number is 3 or 4; or b. 45 m of the extended runway centre line where the code number is 1 or 2. (ii) For a non-precision approach runway : Only aids required for air navigation purposes are allowed on a runway end safety area. (iii) For a non-instrument runway with code number 1 or 2, and where a runway end safety area is provided : Only aids required for air navigation purposes are allowed on a runway end safety area. (iv) Any other objects, including supporting equipment and installations for navigational aids, shall be located outside runway end safety areas. OBSTACLES ON TAXIWAY STRIPS 13. No fixed objects or mobile objects that may constitute as obstacles shall be permitted to be located and/or constructed on a taxiway strip, other than equipment and installations required for air navigation purposes and mounted as low as possible. 14. Other objects shall be restricted as follows – Code Between taxiway centreline to object Letter [metres] A 16.25 B 21.5 C 26 D 40.5 E 47.5 F 57.5 OBSTACLES WITHIN TAXILANE CLEARANCE DISTANCE 15. No fixed objects or mobile objects that may constitute as obstacles shall be permitted to be located and/or constructed within a taxilane clearance distance, other than equipment and installations required for air navigation purposes and other than equipment and installations required for air navigation purposes and mounted as low as possible. 16. Other objects shall be restricted as follows – Code Between taxilane centreline to object Letter [metres] A 12 B 16.5 C 24.5 D 36 E 42.5 F 50.5