KPRC Prescott Regional — Instrument Checkride Guide

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

Prescott Regional Airport (KPRC) — Ernest A. Love Field — serves Prescott, Arizona at 5,045 ft MSL. The airport operates under Class D airspace during tower hours (0600–2200 local), with ATIS on 127.2 MHz, Tower on 125.3 MHz, Ground on 121.7 MHz, and Clearance Delivery on 119.25 MHz. Approach/Departure is handled by Phoenix Approach on 133.575 MHz.

Outside tower hours, KPRC becomes non-towered and pilots use CTAF 125.3 MHz. IFR arrivals and departures outside tower hours are handled through Phoenix Center. The high elevation demands that pilots account for density altitude on every departure and missed approach — performance numbers from sea-level POH tables do not apply here.

What instrument approaches are published at KPRC?

KPRC offers six published instrument approach procedures, sourced from AirNav.

Always verify current minima on official FAA charts before flight. The RNAV (RNP) Z procedure requires explicit FAA authorization under AC 90-101A — it is not available to general IFR pilots without that authorization.

What is the runway configuration at KPRC?

KPRC has three runways, including one long primary IFR runway and two shorter crosswind runways.

Runway 3R/21L is the primary instrument runway at 7,619 ft. The 4,408-ft Runway 12/30 supports the VOR and RNAV RWY 12 approaches. Runway 3L/21R has no published approach. Wildlife is present on and near the airport per published NOTAMs — maintain vigilance during low-visibility operations.

How does high elevation affect IFR operations at KPRC?

At 5,045 ft MSL, KPRC presents density altitude challenges that directly affect checkride performance. On a standard day at 5,045 ft, density altitude already equals field elevation. On a summer afternoon at 90°F, density altitude can exceed 8,500 ft — significantly degrading climb performance, increasing true airspeed at a given indicated airspeed, and lengthening takeoff roll.

Under 14 CFR 91.175, a missed approach must be initiated upon reaching DA without the required visual references. At KPRC, that missed approach climb must be executed against already-reduced engine and propeller efficiency. Pilots must precompute missed approach climb performance at the actual density altitude — not the standard sea-level figure from the POH. The DPE will ask you to brief obstacle clearance and climb gradient during the approach briefing.

What weather patterns affect KPRC?

Prescott sits in central Arizona's transition zone between the Sonoran Desert and the Colorado Plateau. Three distinct weather patterns affect IFR operations.

The North American Monsoon (July–September) is the most significant IFR hazard. Moisture flows in from the Gulf of California and Gulf of Mexico, fueling afternoon thunderstorm development over the Bradshaw Mountains southeast of the airport. Convective activity can produce rapid ceiling drops, gusty winds, heavy rain, and reduced visibility — sometimes within 30 minutes of VFR conditions. Check convective SIGMETs from aviationweather.gov before any afternoon departure.

Winter frontal systems bring icing. The temperature–dewpoint spread narrows quickly as fronts approach, and the high elevation means that icing levels can extend to the surface. Mountain wave turbulence from the Bradshaw Mountains can persist for hours after frontal passage.

Spring and fall offer the most stable IFR conditions, though afternoon convection remains possible in spring.

What should you expect on an instrument checkride at KPRC?

An instrument checkride at KPRC primarily tests two skills that many lower-elevation pilots undervalue: density altitude awareness and high-terrain departure procedure planning. The DPE will want to see that you have computed actual performance numbers — not assumed sea-level values — and that your missed approach plan accounts for the climb gradient available at the field's elevation.

The ILS RWY 21L is the expected primary approach. With precision glideslope guidance and a 7,619-ft runway, it offers a straightforward evaluative environment. The DPE will assess glideslope and localizer tracking, approach briefing completeness, and whether you call out DA and missed approach point correctly under 14 CFR 91.175.

Outside tower hours, the airport is non-towered. If the checkride spans the 2200 tower-close time, the transition from towered to non-towered operations is itself evaluable — proper self-announce procedures on CTAF 125.3 MHz, awareness of traffic pattern direction, and appropriate light signals if radio failure occurs. The DPE may deliberately plan this timing.

Expect questions about the RNAV (RNP) Z procedure: what authorization is required, why curved path segments exist, and what avionics capability is needed. You are not expected to fly it, but you must explain why it requires special authorization.

Practice Questions

1. You are established on the ILS RWY 21L at KPRC at 6,800 ft MSL when glideslope guidance fails. How does this change your approach status, and what minima now apply under 14 CFR 91.175?

2. On the missed approach from the ILS RWY 21L, your aircraft POH shows a climb gradient of 200 ft/nm at sea level. The actual density altitude is 8,200 ft at the time of the missed approach. What must you do before beginning the approach?

3. KPRC tower closes at 2200. You are inbound on an IFR clearance at 2155. What changes when the tower closes, and what frequencies are relevant for your arrival?

4. The RNAV (RNP) Z RWY 03R is charted at KPRC. A passenger asks why you cannot just fly it. Explain what authorization is required and what makes it different from a standard RNAV (GPS) approach.

5. You are planning an IFR departure from KPRC at 1400 local in July. The TAF shows scattered thunderstorms after 1600. What are your legal and practical decision points before you start the engine?

Frequently Asked Questions

Q: What instrument approaches are published at KPRC?

KPRC publishes an ILS or LOC/DME to Runway 21L, RNAV (GPS) approaches to Runways 12 and 21L, an RNAV (GPS) Y to Runway 03R, an RNAV (RNP) Z to Runway 03R (authorization required), and a VOR to Runway 12. The ILS RWY 21L is the only precision approach.

Q: What is the elevation of Prescott Regional Airport?

KPRC sits at 5,045 feet MSL — one of the highest-elevation instrument airports in Arizona. Density altitude regularly exceeds 8,000 feet on warm summer days, which significantly affects aircraft performance on departure and missed approach.

Q: What are the tower hours at KPRC?

KPRC tower operates from 0600 to 2200 local. Outside those hours, the airport is non-towered and pilots use CTAF 125.3 MHz. ATIS broadcasts on 127.2 MHz during tower hours.

Q: What is the airspace class at Prescott Regional?

KPRC operates under Class D airspace during tower hours (0600–2200). Outside tower hours it reverts to Class G at the surface. Under 14 CFR 91.129, two-way radio communication with the tower is required before entering Class D airspace.

Q: What is the primary ILS runway at KPRC?

Runway 21L (formerly 21) is 7,619 feet long and holds the ILS or LOC/DME approach. It is the longest and primary instrument runway at KPRC. The LOC/DME designator means DME is required when flying the localizer-only procedure.

Q: What weather hazards affect IFR operations at KPRC?

Prescott's summer monsoon season (July–September) brings afternoon thunderstorms with rapid IFR onset. Winter icing is possible when frontal systems move through. Mountain wave turbulence from the Bradshaw Mountains to the southeast can affect approach and departure paths.

Q: What is the RNAV (RNP) Z approach at KPRC?

The RNAV (RNP) Z RWY 03R at KPRC is an authorization-required (AR) procedure with curved or RF leg segments requiring specific avionics and pilot training approval. Under FAA AC 90-101A, operators must hold explicit authorization from the FAA before flying RNP AR procedures.

Sources

• AirNav — KPRC Airport Information
• 14 CFR 91.129 — Operations in Class D Airspace (Cornell LII)
• 14 CFR 91.175 — Takeoff and Landing Under IFR (Cornell LII)
• FAA AC 90-101A — Approval Guidance for RNP Procedures with AR
• FAA Instrument Flying Handbook FAA-H-8083-15B
• aviationweather.gov — Convective SIGMETs

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