Part #: 011-00295-00

Model: GNC-250XL





Part Number :

  • Moving Map
  • VFR certified GPS with a TSO'd 760 channel comm
  • Comm features flip-flop frequency selection, automatic squelch and cursor select function.
  • Jeppesen database includes airports, VOR's, NDB's, intersections, Comm frequencies, runways, FSS, MSA, SUA
  • 1000 user defined waypoints
  • 20 reversible routes of up to 31 waypoints each
  • Stoarge for comments on up to 250 waypoints
  • 9 user checklists of up to 30 items each
  • 9 schedules user messages
Emergency Search: 9 nearest airports, VOR's, NDB's, intersections, or user waypoints; 2 nearest FSS with frequncies; 2 nearest ARTCC frequencies Alarms: Arrival, Proximity, Timers
Receiver: PhaseTrac12, 12 parallel channel receiver, simultaneously tracks and uses up to 12 satellites to compute amd update position Acquisition Time: 15 seconds (warm), 45 seconds (cold)
Update Rate: 1/second, continuous Accuracy: 15 meters
Interfaces: ARINC 429, plotting (NMEA 0183 v2.0), aviation, PC interface, altitude serializer, fuel sensor, fuel/air data computer Map Datums: 124 predefined, 1 user defined
Size: 6.25 x 2 x 5.8 inches Weight: 41 ounces
Certification: TSO C37d Class 4 (VHF Transmitter) TSO C38d Class C (VHF Receiver) AC 20-138 (VFR) (GPS Receiver) VHF Transceivr Performance: 760-channel 118-136.975 MHz 5 watt minimum transmitter power
Comm Features: Auto squelch control, standard headset output with sidetone and audio leveling, stuck mic transmission timeout, emergency channel select, "autotune" frequency selection Navigation Features: Search and rescue operation (ladder search), pilot-defined course selection and waypoint hold, closest point of appraoch, dep and arr. frequencies
Planning Features: True airspeed, density altitude, winds aloft, RAIM availability, Sunrise/Sunset calculations, and trip, fuel and VNAV planning Moving Map Features: 14 map scales from 0.5 to 300 units, with nearby waypoints, navaids and sectorized airspace, runway and navigation data displayed. Autozoom feature automatically keeps present position and destination on the map, with user-selectable track up, north up or DTK up display.
Part Number GPS Description:
010-00122-00 Complete system w/install kit, GA-56 GPS antenna, database & manuals
011-00295-00 GPS/Comm unit only; P/N that is actually on dataplate 


- VFR GPS/Comm
Price Condition Status

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For handheld GPS receivers, database updates can be ordered and downloaded directly through Garmin's Internet site.

For panel mount GPS receivers, all database cards and computer downloads (if applicable) must be ordered through Jeppesen. Contact Jeppesen at for more information.

Newly Overhauled parts obtained from Garmin are designated with an N in their part number. This usually follows the 010- in the part number. As with most Garmin 010 part numbers, the N part numbers are for ordering purposes only and do not actually appear on the dataplate of the unit.

An altimeter does not measure altitude on the GNC-250XL. The altimeter in the aircraft measures air pressure. The altimeter is calibrated to display a certain change in altitude based on a change in air pressure. For every inch of mercury pressure change, the altimeter displays a change of approx. 1000 ft. of altitude. The GPS does not use air pressure to determine altitude and is not subject to the pressure errors in determining altitude. Therefore, the GPS derived altitude is almost always more accurate than an altimeter. Since everyone uses a pressure-based system to determine altitude, it is integral to utilize a pressure sensitive altimeter to ensure required vertical separation.

Garmin issued Service Advisory No. 1930 Rev B on August 13, 2020 which stated that repair services and service parts were discontinued for the GPS-155XL, GNC-250XL, and GNC-300XL units.

In relation to NE (New) parts, many OEMs change their prices and availability without any notice to dealers or the industry. Therefore, through the REQUEST or RFQ indication, we ask that customers contact us for the most accurate price and availability.

In relation to SV & OH parts, the used parts aftermarket in the aviation industry is not an infinite supply. It is a dynamic, constantly changing market that is significantly affected by and susceptible to highs and lows in supply and demand. Therefore, although we attempt to, at times, we are unable to predict the exact moment when an item may be available. Once again, through the REQUEST or RFQ indication on our website, we ask that customers contact us for the most current and accurate price and availability.