Log VOR accuracy checks with all required details and keep a searchable, timestamped record for IFR compliance.
FAR 91.171 requires a VOR accuracy check within the preceding 30 days before you can use VOR navigation under IFR. Most pilots track this on a sticker in the cockpit or a note in the back of the logbook. AircraftMX gives you a proper digital record that's organized, searchable, and always accessible.
Log each VOR check with all the details the regulation requires: the check type (VOT, ground checkpoint, airborne checkpoint, or dual VOR), the date, location or facility identifier, bearing error for each VOR receiver, the frequency used, and the signature of the person who performed the check. AircraftMX supports digital signatures captured directly on your device, so you can sign off on the check right from the ramp.
The VOR check list shows your complete history of checks, sorted by date, with the most recent check prominently displayed. At a glance, you can see whether your 30-day window is still current or whether a new check is needed before your next IFR flight. The Dashboard widget also surfaces your VOR check status alongside other currency items.
Each check record stores bearing errors for both VOR 1 and VOR 2 receivers, so you maintain a running accuracy history. Over time, this data can reveal trends — a slowly increasing bearing error on one receiver might indicate an antenna or receiver issue worth investigating before it causes a failed check or, worse, inaccurate navigation.
For IFR pilots, VOR checks are a routine compliance item that's easy to let slip. AircraftMX keeps the record clean, the history searchable, and the status visible — so you never have to wonder whether you're legal to file that next instrument approach.
Free 30-day trial. No credit card required.

Your aircraft command center with status cards and maintenance overview.
Learn More ›
Track inspections, oil changes, and recurring maintenance with automated reminders.
Learn More ›
Ask your maintenance history anything and get cited answers instantly.
Learn More ›
Shared reservation calendar for partnerships and multi-pilot aircraft.
Learn More ›
Upload a receipt and AircraftMX transcribes and categorizes it automatically.
Learn More ›
Smart transcription turns paper logbooks into searchable digital records.
Learn More ›
Document and track aircraft issues from discovery through resolution.
Learn More ›
Monitor engine health with precision oil tracking and consumption trends.
Learn More ›
Log flights manually or auto-import from FlightData, AirSync, and more.
Learn More ›
Complete inventory of every installed component with AD/SB discovery.
Learn More ›
Unlimited uploads with OCR and intelligent record linking.
Learn More ›
FAA AD database matched to your aircraft with compliance tracking.
Learn More ›
Discover and track manufacturer bulletins matched to your aircraft.
Learn More ›
Stay IFR-legal with streamlined VOR accuracy check tracking.
Learn More ›Free 30-day trial. No credit card required.