AIRBUS BLOCK II Operational Software Upgrade

Honeywell is the undisputed leader in providing Air Data Inertial Reference Units (ADIRU) to the aviation industry. Honeywell and Airbus are pleased to announce the availability of a software update to a number of the Airbus Block II ADIRU part numbers used on the Airbus A320 Series and A330/A340 aircraft.

This update to the operational software includes the Gyro Life Monitor function that continuously monitors the three Ring Laser Gyros (RLG) on-board the Airbus Block II ADIRU for signs of impending failure, with a proactive warning through the Aircraft Central Maintenance Computer that reduces or eliminates unplanned ADIRU removals due to gyro failure. In addition, the Magnetic Variation Tables are updated to the latest available MagVar 2015 optimized to 2020. This is a shop upgrade resulting in the ADIRU PN rolling to HG2030AE25/45.

The following Airbus Block II ADIRU PNs are candidates for this valuable upgrade:

HG2030AD09/AD10/AD11/AD12/AD13/AD33,
HG2030AE20/AE21/AE23/AE24/AE43/AE44The Block II ADIRU was replaced in A320 Series and A330 new aircraft production by the Block III in approximately 2012 and 2013 respectively. A320s delivered prior to 2012, and A330s delivered prior to 2013 are the main benefactors from this upgrade, as well as all A340s that have not been retrofitted with Block III.

Pricing for this update is dependent on the current PN of the ADIRUs being updated which dictates the number of Honeywell SBs required.

Frequently Asked Questions

What is the typical lead time for gas turbine overhaul services?

The lead time for gas turbine overhaul services ranges from 6 to 14 weeks, depending on the damage assessment, parts availability, and whether hot-section repairs are required. Expedited options may reduce this by 30%.
Do you provide customizations for legacy turbine control systems?

Yes, we retrofit legacy systems (e.g., GE Frame 5, Siemens V94.2) with modern digital controllers, typically completing hardware integration within 4-8 weeks. Software migration requires additional validation time.
How often should industrial gas turbines undergo performance testing?

We recommend annual performance testing under ISO 3977-2 standards. Critical applications (e.g., offshore platforms) may require semi-annual tests with emissions compliance checks.
Are your radiation-hardened (rad-hard) semiconductors compliant with MIL-PRF-38535?

All rad-hard devices (e.g., FPGA, ADC) are QML Class V certified under MIL-PRF-38535 and tested to MIL-STD-883 Method 1019 for SEU tolerance. Full qualification reports are available upon request.
What temperature ranges do your military-grade ICs support?

Our ASICs and power management ICs operate across -55°C to +175°C ambient temperatures, with derating curves provided in military temperature range (MTR) datasheets.
Are PMA parts interchangeable with OEM components?

Our PMA parts (e.g., actuators, sensors) hold FAA/EASA Form 1 certification and match OEM form/fit/function. Installation requires SB/MB documentation per FAA AC 23.1529.
What traceability standards do you follow for aircraft fasteners?

All NAS/MS fasteners include full DNA traceability: melt source (AMS 2301), heat/lot numbers, and AS9100-compliant MTRs with ultrasonic test reports.
How do you handle urgent AOG (Aircraft on Ground) requests?

AOG orders ship within 4 hours for stocked items (FAA-PMA, EASA Part 21G). Non-stock critical parts trigger priority manufacturing with 72-hour max turnaround.