General Communication Procedures
Instrument Flight
IFR VOICE PROCEDURES
REPORTS THAT ARE MADE AT ALL TIMES (RADAR & NON-RADAR)
1. When vacating any previously assigned altitude or flight level for a newly assigned altitude or flight
level.
2. When an altitude change will be made if operating on a clearance specifying “VFR ON TOP.” (Below
18,000 MSL or above FL600)
3. When unable to descend or climb at a rate of at least 500 ft per minute.
4. When an approach has been missed. (Include a request for specific action; i.e., to alternate airport,
another approach, etc.)
5. Change in the average true airspeed (at cruising altitude) when it varies by 5 percent or 10 KIAS
(whichever is greater) from that filed in the flight plan.
6. Time and altitude arriving at a holding fix or point which cleared.
7. When leaving any holding fix or point.
NOTE: The reports in subparagraphs (6) and (7) above may be omitted by pilots of aircraft involved in
instrument training at military terminal area facilities when radar service is provided.
8. Any loss of navigation capability such as VOR, TACAN, ADF, complete or partial loss of ILS capability
or impairment of air/ground communications capability. Reports should include aircraft (identification),
(equipment affected), (degree to which the capability to operate under IFR in the ATC system is
impaired), and the (nature and extent of assistance desired from ATC).
NOTE: Other equipment installed in an aircraft that may effectively impair safety and/or the ability to
operate under IFR. If such equipment (e.g. airborne weather radar) malfunctions and in the pilots
judgement either safety or IFR capabilities are affected, reports should be made.
9. Any information relating to safety of flight.
10. Encountering weather conditions which have not been forecast or hazardous conditions which have
been forecast are expected to forward a report of such weather to ATC, and time permitting, FSS or
METRO.
NOTE: The ATC controlling agency should be informed anytime weather conditions on an IFR approach
differ from the latest observation or anytime a wind shear or (microburst) is encountered on departure or
approach.
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