NAV APPROACH MODES

VOR approaches without  a valid DME signal are prohibited with autopilot coupled or with flight director in NAV or APP mode. (Use Heading Mode and Monitor CDI)

● APP Mode for increased sensitivity On VOR Approaches (with DME)

● NAV Mode on LOC Approaches

AFM 2-17

Honewell Limitations

AFM

2-19 9

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ILS                APP

VOR/DME    APP

LOC             NAV

RNAV/GPS  NAV

VOR            HDG

NDB            HDG

BC               BC

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Approach

All Circling Approaches:

Minimum HAA 450' 

1½ SM Visibility

Circle Category C Minimums

Remain Within 1.7 Miles

Ref +20

Minimum Maneuver Speed

Flaps 0° Ref+30

(Flaps inop landing)

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FAR 135

An instrument approach shall not be commenced when the visibility conditions are reported to be less than ¾ statue mile or RVR 4000, unless these is 15% additional runway length available over the landing field length required (destination only), and precision instrument (all weather) runway markings or centerline lights are operational on the runway to be used.

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Category I Approach

Authorized to perform 1800 RVR ILS operations without TDZ/CL lights when utilizing FD/AP with approach coupled.

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When Eexecuting any straight-in, Cat I IAP, TDZ RVR (Only) is controlling when available.  A Mid-RVR may be substituted if the TDZ RVR is not available.

If no "controlling" RVR is available, reported visibility shall be controlling.