Part #:

Model: IVA-81A

BendixKing - TCAS Indicator
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Part Number :

  • TCAS indicator used in CAS-67A TCAS system
  • Combined vertical speed, traffic advisory and resolution advisory display
  • Meets requirements of both type B&C VSI indicators with pneumatic or air data electrical inputs
  • ARINC 500 and 700 series air data input
  • High-speed ARINC 429 data input
  • Solid state, no mechanical parts
  • Pushbutton range control on front panel of TA/RA/VSI display (optional)
  • Range control allows selection of 1,3,5,10,15,20, or 40 nautical mile display range
  • Ranges and range groups available are defined by software version
  • TA selection (SEL) switch declutters all traffic symbols from display (optional)
  • Brightness control (optional)
  • Black, gray, brown, or blue face color available
  • 115 VAC or 28VDC power input available
  • 5 VAC/DC or 28VDC panel lighting available
  • Mating connector P/N M8372375R2041N
  • NOTE: The IVA-81A was superseded and replaced by the IVA-81D Indicator (see Install Bulletin 452)
Size: 3 ATI x 7.5" deep Weight: 2.75 lbs, 1.25 kg
Mounting: Front, panel mount Primary Power: 115V 400Hz, 22 watts; or 28VDC, 29 watts
Lighting Power: 5VAC/DC, 195mA; or 28VDC, 135mA Temp Range: -15 to 70C
TSO: C119a, C8c Environmental: A2/C/A/PKS/XXXXXXXAAEZZZK


Part Number TCAS indicator Description:
066-50001-0901 Superseded by 066-01171-0901
066-50001-0903 Superseded by 066-01171-0903
066-50001-0904 Superseded by 066-01171-0904
066-50001-1001 Superseded by 066-01171-1001
066-50001-1004 Superseded by 066-01171-1004
066-50001-1101 Superseded by 066-01171-1101
066-50001-1704 Superseded by 066-01171-1704
066-50001-1804 Superseded by 066-01171-1804
066-50001-2304 Superseded by 066-01171-2304
066-50001-2702 Superseded by 066-01171-2702
066-50001-2704 Superseded by 066-01171-2704
066-50001-2804 Superseded by 066-01171-2804
066-50001-3104 Superseded by 066-01171-3104
066-50001-3404 Superseded by 066-01171-3404
066-50001-3504 Superseded by 066-01171-3504
066-50001-3604 Superseded by 066-01171-3604
066-50001-3706 Superseded by 066-01171-3706
066-50001-8102 Superseded by 066-01171-8102
Click Here to view part number descriptions for IVA-81A Click Here to view software version descriptions for IVA-81A
- TCAS Indicator
Price Condition Delivery

SEA Repair Capabilities: No

- TCAS Indicator
Price Condition Delivery

SEA Repair Capabilities: No

- TCAS Indicator
Price Condition Delivery

SEA Repair Capabilities: No

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

No, because TCAS II is installed under an aircraft STC approval, whatever part number is indicated in the TCAS II STC for that aircraft must be installed.  This is not referring to the IVA-81A to IVA-81D replacement that is addressed in another FAQ.

Yes, the IVA-81D is a fit, form, and function replacement for the IVA-81A TCAS Indicator. The IVA-81D replacement should be strongly considered when replacing a defective IVA-81A in an existing TCAS system or the installation of an IVA-81A indicator into a new TCAS installation. This is due to the fact that certain parts (such as the CRT) for the IVA-81A will no longer be available in the very near future.
Yes, with its improved design, the IVA-81D (P/N 066-01171-XXXX) is a direct fit, form, and function replacement for the IVA-81A (P/N 066-50001-XXXX). Click Here to see the Installation Bulletin from Honeywell.
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.