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6/17/21 

AIM 

ance, but it does not necessarily consider separation 
from other air traffic. The pilot must consider other 
factors such as the aircraft’s geographical location 
with respect to the prescribed missed approach point, 
direction of flight, and/or minimum turning altitudes 
in the prescribed missed approach procedure. The pi-
lot must also consider aircraft performance, visual 
climb restrictions, charted obstacles, published ob-
stacle departure procedure, takeoff visual climb 
requirements as expressed by nonstandard takeoff 
minima, other traffic expected to be in the vicinity, or 
other factors not specifically expressed by the ap-
proach procedures. 

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22.  Use of Enhanced Flight Vision 

Systems (EFVS) on Instrument Approaches 

a.  Introduction.

 During an instrument approach, 

an EFVS can enable a pilot to see the approach lights, 
visual references associated with the runway 
environment, and other objects or features that might 
not be visible using natural vision alone. An EFVS 
uses a head

up display (HUD), or an equivalent 

display that is a head

up presentation, to combine 

flight information, flight symbology, navigation 
guidance, and a real

time image of the external scene 

to the pilot. Combining the flight information, 
navigation guidance, and sensor imagery on a HUD 

(or equivalent display) allows the pilot to continue 
looking forward along the flightpath throughout the 
entire approach, landing, and rollout. 

An EFVS operation is an operation in which visibility 
conditions require an EFVS to be used in lieu of natu-
ral vision to perform an approach or landing, 
determine enhanced flight visibility, identify required 
visual references, or conduct a rollout. There are two 
types of EFVS operations: 

1. 

EFVS operations to touchdown and rollout. 

2. 

EFVS operations to 100 feet above the 

touchdown zone elevation (TDZE). 

b.  EFVS Operations to Touchdown and Roll-

out.

 An EFVS operation to touchdown and rollout is 

an operation in which the pilot uses the enhanced 
vision imagery provided by an EFVS in lieu of natural 
vision to descend below DA or DH to touchdown and 
rollout. (See FIG 5

4

34.) These operations may be 

conducted only on Standard Instrument Approach 
Procedures (SIAP) or special IAPs that have a DA or 
DH (for example, precision or APV approach). An 
EFVS operation to touchdown and rollout may not be 
conducted on an approach that has circling 
minimums. The regulations for EFVS operations 
to touchdown and rollout can be found in 
14 CFR § 91.176(a). 

FIG 5

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34 

EFVS Operation to Touchdown and Rollout 

Arrival Procedures 

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