Part #: 011-00295-00

Model: GNC-250XL

Garmin - VFR GPS/Comm
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 Delivery

SEA Repair Capabilities: Yes

Click on a question below to see the answer. If you have a question about this model that is not answered below, please contact

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.

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.

Southeast Aerospace exchanges are based on the return of an undamaged, economically repairable core unit with identical part number as the unit shipped to the customer. An "economically repairable" core is defined as one where the cost to repair/overhaul (or Repair Cap) does not exceed 80% of the original SV/OH exchange price billed. Should the Repair Cap exceed 80%, the customer will be billed the additional amount. In the event this amount exceeds the Outright Price for the unit, the customer would only be billed the difference between the Outright Price and SV/OH Exchange Price with the core returned as-is to the customer.

Here is an example of such a transaction:

$1000 Exchange Price charged to customer
$1000 x .8 = $800 Maximum Allowable core repair charge or Repair Cap

$2000 Cost to repair core unit
- $800 Less Core repair cap
$1200 Additional billing amount.

2200.00 Total Cost of transaction

Please Note:
SEA offers exchange on new items as well. However, repair cap as indicated above is still based on SV/OH exchange price.
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.