KMGM Montgomery Regional — Instrument Checkride Guide

What kind of airport is KMGM and what is its IFR environment?

Montgomery Regional Airport — officially Dannelly Field (KMGM) — sits at 232 ft MSL in central Alabama. The airport is surrounded by Class C airspace. Under 14 CFR 91.130, pilots must establish two-way radio communication with Montgomery Approach before entering Class C — unlike Class B, a clearance is not required, but communication is mandatory. ATIS broadcasts on 120.675 MHz; Montgomery Tower operates 0600–2300Z on 119.7 MHz. Clearance delivery is on 118.3 MHz.

A critical note for pilots: Maxwell AFB is approximately 6 nm north of KMGM. FAA instrument procedure charts include the caution "Do not mistake Maxwell AFB for this facility." Before commencing any approach, positively identify the ILS by its published identifier on your avionics. Maxwell operates under military airspace coordination — flying the wrong ILS is not merely an embarrassment but a potential airspace incursion.

What instrument approaches are published at KMGM?

KMGM has an unusually diverse approach suite for a mid-size regional airport, including multiple lettered ILS procedures and legacy non-precision approaches, sourced from AirNav.

Special alternate minimums are published for KMGM. This means standard alternate minimums (600-2 for precision, 800-2 for non-precision) do not apply — always consult the published alternate minimums before filing KMGM as an alternate. Special takeoff minimums are also published; review the applicable DP notes when filing KMGM as a departure airport.

What is the runway configuration at KMGM?

KMGM has 2 runways. Runway 10/28 is the primary instrument runway at 9,020 ft — unusually long for a city of Montgomery's size, reflecting the airport's shared military heritage. Runway 03/21 provides crosswind capability at 4,011 ft but has no ILS.

The 9,020 ft runway 10/28 is adequate for commercial jet operations, and KMGM handles scheduled airline traffic alongside general aviation. DPEs may use the longer runway exclusively for the precision approach portion of the checkride due to the significant length difference.

What weather should instrument pilots expect at KMGM?

Montgomery lies squarely in the Gulf moisture corridor. When high pressure sits over the Gulf of Mexico and weak frontal systems stall over Alabama, persistent low ceilings and fog are common from October through March. These events can last 2–3 days, with ceilings varying between 200 and 800 ft and visibility fluctuating around 1 mile. The National Weather Service Birmingham (BMX) office issues TAFs for KMGM.

Spring is severe weather season in central Alabama. Gulf of Mexico moisture feeding north into the Tennessee Valley creates conditions favorable for supercell thunderstorms from March through May. Tornadoes are a documented hazard in the region. Instrument pilots operating in Alabama during spring should monitor convective SIGMETs closely — convection can develop from benign conditions to severe within 30 minutes.

Summer heat and humidity create afternoon convective activity from June through September, though individual cells are generally less organized than spring supercells. Night IFR operations are often more straightforward in summer once afternoon storms clear.

What should you expect on an instrument checkride at KMGM?

Flying a checkride at KMGM puts you in a Class C environment with active airline and military traffic — more complex than a Class D reliever airport but more approachable than full Class B. The DPE will evaluate whether you communicate correctly with Montgomery Approach, comply with Class C entry requirements, and manage traffic awareness alongside the instrument workload.

The multiple-suffix ILS procedures (Y and Z) are a legitimate oral and airborne scenario topic. A DPE may assign one specific procedure during the oral — "brief me the ILS Z RWY 10" — and expect you to identify how it differs from the ILS Y in terms of initial approach fix, routing, and applicable notes. Confusing Y and Z in a real approach environment is a task management error that the DPE is watching for.

Maxwell AFB proximity is almost certain to come up. Expect a question such as: "How would you positively identify KMGM's ILS and confirm you are not aligned with Maxwell's approach?" The answer involves checking the ILS identifier in your avionics against the published identifier on the approach plate — not just verifying the runway heading.

The VOR-A approach is circling-only, which opens discussion of circling approach minimums under 14 CFR 91.175, aircraft category, and the requirement to maintain the runway environment in sight throughout the circling maneuver. Circling approaches are evaluated under ACS Task VI.D — the DPE may combine the VOR-A with an assigned circle to a different runway.

Special alternate minimums mean the DPE can test your alternate planning knowledge: ask what standard alternate minimums are, why KMGM departs from them, and how you would locate the applicable special minimums before flight.

Practice Questions

1. ATC clears you for the ILS Y RWY 28 at KMGM. When you call up the ILS, the identifier does not match what is printed on the approach plate. What do you do and what does this indicate?

2. You are planning KMGM as your alternate. The published procedure says "Special Alternate Minimums apply." Where do you find those minimums, and why might they differ from the standard 600-2 / 800-2 rule?

3. You are flying the VOR-A approach at KMGM, which is circling-only. You break out of the clouds at MDA in Category B. You see the airport but not the assigned runway. Walk through the circling maneuver requirements under 14 CFR 91.175.

4. KMGM Approach clears you into Class C by establishing two-way radio communication. Later, you attempt to enter the Class C from an adjacent sector without calling Approach first. What regulation did you violate and what is the consequence?

5. Maxwell AFB is 6 nm north of KMGM. On a night IFR approach in low visibility, how do you ensure you are aligned with the correct facility before beginning your final approach descent?

Frequently Asked Questions

Q: What instrument approaches are published at KMGM?

KMGM publishes ILS Y and Z (with LOC Y and Z) approaches to runways 10 and 28, RNAV (GPS) to runways 3, 10, and 28, a VOR-A procedure, an NDB runway 10 approach, and a TACAN-J. Special alternate minimums apply — review the published notes before filing KMGM as an alternate.

Q: What is the airspace class at Montgomery Regional?

KMGM (Dannelly Field) operates under Class C airspace. Under 14 CFR 91.130, two-way radio communication must be established with ATC before entering Class C. Montgomery Approach controls the Class C and provides radar services on 124.0 MHz.

Q: What is the ATIS frequency at KMGM?

KMGM ATIS broadcasts on 120.675 MHz. Montgomery Tower operates on 119.7 MHz (0600–2300Z). Approach and departure is on 124.0 MHz. Clearance delivery is on 118.3 MHz.

Q: Why does KMGM have ILS Y and ILS Z designations?

When an airport publishes more than one ILS or RNAV procedure to the same runway, the FAA designates them with suffixes (Y, Z, X) to distinguish them. At KMGM, the Y and Z designations reflect differences in the procedure routing, initial approach fix, or minima — always review both procedures and the applicable notes before flight.

Q: Where is Maxwell AFB relative to KMGM?

Maxwell AFB is approximately 6 nm north of KMGM (Dannelly Field). FAA approach charts note "Do not mistake Maxwell AFB for this facility." Pilots must confirm they are receiving the correct ILS identifier before descending on an approach.

Q: What weather hazards should instrument pilots expect at KMGM?

Montgomery is susceptible to Gulf of Mexico moisture producing low ceilings and fog from October through March. The region also lies in the path of Gulf-fueled severe weather systems in spring, with tornadoes and heavy convection possible from March through May.

Sources

• AirNav — KMGM Airport Information
• SkyVector — KMGM Instrument Approach Procedures
• 14 CFR 91.130 — Operations in Class C Airspace (Cornell LII)
• 14 CFR 91.175 — Takeoff and Landing Under IFR (Cornell LII)
• FAA Instrument Flying Handbook FAA-H-8083-15B
• NWS Birmingham (BMX) — Alabama TAFs and Severe Weather

This article was researched from FAA primary sources (ACS, FAR/AIM, Advisory Circulars, Instrument Flying Handbook), approach procedure data from AirNav and SkyVector, and current 14 CFR Part 91 — drafted by MockDPE. Last updated: May 2026. If you spot an inaccuracy, email corrections@mockdpe.org.