BY ORDER OF THE SECRETARY OF THE AIR FORCE AIR FORCE ...

AFMAN 11-217V1 3 JANUARY 2005 175
8.5.5.1.5. Airport sketch. The airport sketch and all the information associated
with it.
8.5.5.2. Operating hours. The IAP books contain complete radar minimums. The
IFR Supplement contains time periods when the aerodrome and its NAVAIDs are
operational. It also indicates when NAVAIDs will be off the air for NO-NOTAM
preventive maintenance, as well as other items unique to the particular operation of
the airfield.
8.5.6. Reviewing RNAV (GPS) IAPs. The following section highlights elements of
RNAV (GPS) IAPs that differ from IAPs based on conventional NAVAIDs.
8.5.6.1. Equipment requirements. The “TERMS/LANDING MINIMUMS DATA”
(Section A) of the U.S. Government Terminal Procedures books provide a description
of the aircraft equipment requirements for RNAV (GPS) IAPs. More detailed
information can be obtained via the AFFSA web page. Pilots are responsible for
ensuring that the aircraft is suitably equipped for the level of minimums used. Be
aware that very few RNAV (GPS) IAPs may be flown using DME/DME RNAV
systems. Note that the “(GPS)” in the approach title does not indicate the approach
may be flown in aircraft with any GPS equipment. GPS equipped aircraft must meet
the equipment requirements described above.
8.5.6.1.1. Use of LNAV/VNAV DA requires certified VNAV functionality or
WAAS on the aircraft. Use of GLS minimums requires WAAS equipment on
the aircraft.
8.5.6.2. Procedure name. Where multiple RNAV procedures exist to the same
runway, subsequent RNAV procedure titles will be followed by the suffix X, Y, or Z
(e.g., “RNAV (GPS) Z RWY 22”). ATC clearance for the RNAV procedure will
authorize the pilot to use any landing minimums for which the pilot and/or aircraft is
capable and authorized.
8.5.6.3. Chart Terminology.
8.5.6.3.1. Decision Altitude (DA). DA replaces the term Decision Height (DH)
as a step towards harmonization with ICAO terminology. The published descent
profile is flown to the DA, where a missed approach will be initiated if visual
references for landing are not established. Obstacle clearance criteria accounts for
a momentary descent below DA while transitioning to the missed approach.
8.5.6.3.2. Minimum Descent Altitude (MDA). MDA carries the same meaning
as in conventional IAPs, and is associated with LNAV minimums. Obstacle
clearance is based on no descent below MDA. Thus, if vertical guidance is used
down to LNAV minimums, pilots must ensure that the descent is broken in time
to level off at MDA if visual references for landing are not established.
8.5.6.3.3. LPV. LPV minimums are based on augmented GPS systems (WAAS)
providing near ILS accuracy. "LPV" is not an acronym, but the title of a set of
approach minima associated with specific performance criteria. LPV can also be
referred to as GNSS Landing System (GLS). LPV minima can be as low as a
DA(H) of 250 feet above the ground, with visibility as low as 1/2 mile.