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

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AFMAN 11-217V1 3 JANUARY 2005
Figure 14.2. MLS Approach at Boise, ID.
14.2.2.2.2.4. Manual vs. Automatic Mode. Likewise, if you switch to manual
mode and change either the approach azimuth or glide slope, the IAP you are
using is no longer valid.
14.2.2.2.2.5. Elevation Angle. An elevation angle less than what the approach
was designed for may not give you obstacle clearance, and an elevation higher
than the published angle mandates higher approach minima.
14.2.2.2.2.6. Approach Azimuth. If you change the published approach
azimuth in manual mode, your aircraft will be steered to the runway along a
different course than published which may take you outside of the airspace the
TERPS specialist has protected for you.
14.2.2.2.2.6.1. WARNING: When flying an MLS approach, if operating
in manual mode and the pilot selects an azimuth and/or elevation angle
different from the published procedure, the published approach is no
longer valid and the actual approach flown will no longer guarantee
obstacle clearance. Follow MAJCOM directives regarding flying MLS