Picture of product MKXXI

Part #: 965-1227-003

Model: MKXXI




965-1227-005 EGPWS (Class B)

Part Number :


  • Helicopter Enhanced Ground Proximity Warning System (EGPWS)
  • Enhanced Features: - Detailed Terrain Database - Obstacle Database - Airports & Heliports - Look Ahead Algorithms - Terrain Alerting - Obstacle Alerting - Enroute Terrain Display (Peaks) - Pop-up Feature - Auto Ranging Feature - Geometric Altitude - Enhanced Envelope Modulation - Speed Expansion - Internal GPS Card
  • Display Interfaces: - WX Radar Indicator - MFD - Standalone Display

Click Here for a Helicopter TAWS Comparison Sheet


Packaging: Non-ARINC Size: 3.95"H x 2.20"W x 3.25"L
Weight: 1.5 lbs Max. Power Requirements: 10-32 VDC, 8 watts normal operation
Cooling: Per ARINC 600-6 forced air cooling not required Environmental: Meets RTCA DO-160D
MTBF: 15,000 operating hours Software: Meets RTCA DO-178B Level C & D
TAWS Certification: Designed & certified to TSO-C151a, Class B, TAD functions are tailored uniquely to helicopter flight profiles Data Loader: Databases updated via replacement Compact Flash Card Software updated via removable Compact Flash Card
Configuration: Programmable personality module    
Part Number EGPWS Description:
066-01227-0101 EGPWS computer; original production unit
066-01227-0205 EGPWS computer; current production unit w/improved software/features


- EGPWS Class B
Price Condition Status

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

In April 2006, Honeywell announced that the Sandisk flash card used in the database card for the MKXXI EGPWS was being replaced with a new flash card manufactured by Smart Modular Technologies.

This new database card will only work with MKXXI units with Mod or Service Bulletin 3 incorporated. This Service Bulletin consists of replacing the Processor Card Board in the unit.

As Honeywell considers this a product improvement, the cost to incorporate these mods is approximately $2500 and must be performed at the factory.

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.