2.1 INSTRUMENT APPROACH PROCEDURES

2.2 CATEGORY I ILS APPROACHES

2.3 CATEGORY II ILS APPROACHES

2.4 VISUAL APPROACH PROCEDURES

1. the pilot has the aerodrome in sight and can conduct his approach with visual reference to terrain;

2. the flight will not cause delay to other traffic;

3. there is no conflicting tall vessel movement;

4. the cloud ceiling at the aerodrome is 4,000ft or more for landing on RWY 20 and 3,000ft or more for landing on RWY 02; and

5. the visibility at the aerodrome is 5km or more.

2.5 VESSEL MOVEMENT AFFECTING INSTRUMENT APPROACHES ON RUNWAY 02 AND 20

3.1 INTRODUCTION

1. The Instrument Departure Procedures are only applicable for aircraft with all engines operating. It remains the responsibility of the operator to develop contingency procedures for the individual type of aeroplane and to conduct the necessary examination of obstacles throughout the areas concerned in relation to the certificated performance of the individual aeroplane type. It is also the responsibility of the operator to ensure that contingency procedures comply fully with the aeroplane performance requirements of ICAO Annex 6.

2. The specific routes to be followed are depicted in SID charts AD-2-WSSS-SID-1 to AD-2-WSSS-SID-19. Altitude restrictions at fixes and/or DME specify ATC/airspace requirements.

3. Minimum climb gradient specifies obstacle clearance requirements.

4. In the event that the minimum climb gradient cannot be achieved pilots shall inform ATC. ATC shall hold departures if pilots indicate that they are unable to meet the required climb gradient.

3.2 RUNWAY 02L

1. When there are no reports of vessel movement along the northern shipping channel or where the reported vessel height is 35m AMSL and below, all aircraft departures on Runway 02L, regardless of on SID or vectors, shall be on a minimum climb gradient of 3.3%.

2. Where the reported vessel height is above 35m AMSL, ATC shall advise departing pilots of the vessel height. Pilots on receipt of this information shall apply the minimum climb gradient in accordance with Para 3.6.

3. After the aircraft has reached or passed the minimum crossing altitude over vessel, the minimum climb gradient shall be 3.3%.

3.3 RUNWAY 02C

1. When there are no reports of vessel movement along the northern shipping channel or where the reported vessel height is 70m AMSL and below, all aircraft departures on Runway 02C, regardless of on SID or vectors, shall be on a minimum climb gradient of 3.3%.

2. Where the reported vessel height is above 70m AMSL, ATC shall advise departing pilots of the vessel height. Pilots on receipt of this information shall apply the minimum climb gradient in accordance with Para 3.6.

3. After the aircraft has reached or passed the minimum crossing altitude over vessel, the minimum climb gradient shall be 3.3%.

3.4 RUNWAYS 20L, 20C AND 20R

3.5 RUNWAY 02R

1. When there are no reports of vessel movement along the northern shipping channel or where the reported vessel height is 65m AMSL and below, all aircraft departures on Runway 02R, regardless of on SID or vectors, shall be on a minimum climb gradient of 5% until reaching or passing 2,500ft. Thereafter, the minimum climb gradient shall be 3.3%.
   

2. Where the reported vessel height is above 65m AMSL, ATC shall advise departing pilots of the vessel height. Pilots on receipt of this information shall apply the minimum climb gradient in accordance with Para 3.6.
   

3. After the aircraft has reached or passed the minimum crossing altitude over vessel, the minimum climb gradient shall be 3.3%.
   

4. The minimum climb gradient restriction stated above for Runway 02R is for the purpose of air traffic management. If the climb gradient restriction cannot be complied with, the pilot-in-command of an aircraft departure shall inform ATC during the time when the aircraft commences taxiing to the holding point for departure. Delays can be expected as coordination is required.
   

3.6 DETERMINATION OF CLIMB GRADIENT BY OPERATORS

1. The most penalising obstacle is taken into account under both all engines operating procedures as well as one engine out procedures; and

2. The required minimum obstacle clearance (MOC) is met under all engines operating procedures.

Note: The calculated climb gradient shall not be lower than the procedure climb gradient for departures (refer to ENR 1.5 paragraphs 3.2 a., 3.3 a. and 3.5 a.)

Note: The distance for departure Runways 02L, 02C and 02R are measured from the DER to the shipping channel north of Changi.

4.1 HOLDING PROCEDURES

Initial approach tracks and holding patterns associated with Singapore Airports are detailed in charts ENR 3.6-5, ENR Area3.6-7 Chartsand ENR 3.6-9. Holding patterns for other airfields are indicated on the applicable approach charts.

1. RWY 02L/02C/02R - SAMKO Holding Area (SHA).) - Lower/Upper limits - 3,500ft / FL140.
   

2. RWY 20R/20C/20L - NYLON Holding Area (NHA).) - Lower/Upper limits - 2,500ft / FL140.
   

3. Details of these holding areas and those mentioned in paragraphsparas 4.1.1.2 and 4.1.1.3 are given in
   ENR 3.6. They are also shown in charts ENR 3.6-7 Areaand ChartsENR 3.6-9.