OBSTRUCTIONS : ANA APPROACH (CONVENTIONAL LANDING) SURVEYS
(VALUES ARE IN FEET)
ITEM HORZ VERTICAL AGL
ORTHO ELLIP

NON MAN-MADE OBJECTS, AND MAN-MADE OBJECTS
LESS THAN 200 FT. AGL, THAT PENETRATE THE FOLLOWING
OBSTRUCTION IDENTIFICATION SURFACE:

PRIMARY, APPROACH, APPROACH TRANSITIONMISSED APPROACH

A PRIMARY SURFACE

20.00 3.00 3.00 N/A

THOSE AREAS OF AN APPROACH SURFACE
WITHIN 10,200 FEET OF THE THRESHOLD

20.00 3.00 3.00 N/A

THOSE AREAS OF AN APPROACH TRANSITION SURFACE
WITHIN 2,766 FEET OF THE THRESHOLD (AREA T1)

20.00 3.00 3.00 N/A

THOSE AREAS OF THE APPROACH TRANSITION SURFACE
FURTHER THAN 2,766 FEE FROM THE THRESHOLD BUT
NOT MORE THAN 10,200 FEET FROM THE THRESHOLD

50.00 20.00 20.00 N/A

THE MISSED APPROACH SURFACE

50.00 20.00 20.00 N/A

THOSE AREAS OF AN APPROACH  SURFACE
FURTHER THAN 10,200 FEET FROM THE THRESHOLD

100.00 50.00 50.00 N/A

THOSE AREAS OF AN APPROACH  TRANSITION SURFACE
FURTHER THAN 10,200 FEET FROM THE THRESHOLD

100.00 50.00 50.00 N/A

OBSTRUCTIONS : ANA APPROACH (CONVENTIONAL LANDING) SURVEYS
(VALUES ARE IN FEET)
ITEM HORZ VERTICAL AGL
ORTHO ELLIP

MAN-MADE OBJECTS EQUAL TO OR GREATER THAN
200 FEET AGL THAT PENETRATE THE FOLLOWING
OBSTRUCTION IDENTIFICATION SURFACE:

PRIMARY, APPROACH, APPROACH TRANSITIONMISSED APPROACH

A PRIMARY SURFACE, THOSE AREA OF THE APPROACH AND TRANSITION SURFACES WITHIN 10,200 FEET OF THE THRESHOLD

20.00 3.00 3.00 10.00

THE MISSED APPROACH SURFACE

20.00 3.00 3.00 10.00

THOSE AREAS OF THE APPROACH AND TRANSITION SURFACES
FURTHER THAN 10,200 FEET FROM THE THRESHOLD

50.00 3.00 3.00 10.00
ACCURACIES ARE RELATIVE TO THE NEAREST PACS, SACS, OR HRP
DISTANCES RELATIVE TO THE THRESHOLD OR RUNWAY END ARE MEASURED ALONG THE RUNWAY CENTERLINE OR CENTERLINE EXTENDED TO THE ABEAM POINT.