background image

AIM 

6/17/21 

c.  EFVS Operations to 100 Feet Above the 

TDZE.

 An EFVS operation to 100 feet above the 

TDZE 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/DH or 
MDA down to 100 feet above the TDZE. (See 
FIG 5

4

35.) To continue the approach below 

100 feet above the TDZE, a pilot must have sufficient 
flight visibility to identify the required visual 
references using natural vision and must continue to 

use the EFVS to ensure the enhanced flight visibility 
meets the visibility requirements of the IAP being 
flown. These operations may be conducted on SIAPs 
or special IAPs that have a DA/DH or MDA. An 
EFVS operation to 100 feet above the TDZE may not 
be conducted on an approach that has circling 
minimums. The regulations for EFVS operations to 
100 feet above the TDZE can be found in 
14 CFR § 91.176(b). 

FIG 5

4

35 

EFVS Operation to 100 ft Above the TDZE 

d.  EFVS Equipment Requirements.

 An EFVS 

that is installed on a U.S.

registered aircraft and is 

used to conduct EFVS operations must conform to an 
FAA

type design approval (i.e., a type certificate 

(TC), amended TC, or supplemental type certificate 
(STC)). A foreign

registered aircraft used to conduct 

EFVS operations that does not have an FAA

type 

design approval must be equipped with an EFVS that 
has been approved by either the State of the Operator 
or the State of Registry to meet the requirements of 
ICAO Annex 6. Equipment requirements for an 

EFVS operation to touchdown and rollout can be 
found in 14 CFR § 91.176(a)(1), and the equipment 
requirements for an EFVS operation to 
100 feet above the TDZE can be found in 
14 CFR § 91.176(b)(1). An operator can determine 
the eligibility of their aircraft to conduct EFVS 
operations by referring to the Airplane Flight 
Manual, Airplane Flight Manual Supplement, 
Rotorcraft Flight Manual, or Rotorcraft Flight 
Manual Supplement as applicable. 

Arrival Procedures 

5

4

60