Part #:

Model: KI-256




Flight Command Indicator

Part Number :




  • Flight Command Indicator used in Bendix/King KFC-150 and KFC-200 Flight Control Systems
  • Internally air driven
  • Houses attitude gyro and presents pictorial display of aircraft pitch and roll attitudes
  • Single cue command bar displays computer flight director command
  • Supplies pitch and roll reference signals to KC-295 Flight Computer
  • Available with zero degree or 8 degree panel tilt (see table below)

NOTE: Exchange price may vary if core unit does not have Mods 1-4


This part has special configuration, alignment or software requirements. Please consult with the installer to verify that all of the resources needed for the installation are available. Failure to adhere to the manufacturer’s guidelines will result in adverse operation of the part and/or system.


Size: 3.55"W x 3.37"H x 7.31"L Weight: 3.3 lbs.
Mounting: Front panel mounted TSO: C4c/C52a
DO-138: DA/KM/AAAXXXXXX Power Inputs: +14VDC/0.7AMP max or +28VDC/0.7AMP max; 10VAC, 430Hz with .2 amp max.
Signal Inputs: Flight Director Command signals from the KC-295 computer. Power and Ground for DH light +14V or +28V Signal Output: Attitude reference signal for KC-295 flight computer
Part Number: Description:
060-0017-00 Basic version zero degree panel tilt
060-0017-01 Basic version eight degree panel tilt


- Flight Command Indicator

NSN: 6610-01-587-7857

Price Condition Status
- Flight Command Indicator

NSN: 6610-01-386-7542

Price Condition Status
- Flight Director Indicator

NSN: 6610-01-386-7542

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

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.

Yes, the KI-300 attitude indicator by itself is available for over-the-counter sale. However, if the KI-300 with KA-310 autopilot adapter option is desired, Southeast Aerospace recommends that you contact your local BendixKing dealer for purchase and installation.

Service bulletin 11 for the KI-256 reduces loading effects to the autopilot pitch and roll outputs.  It is required in most installations where the KI-256 is used with the KC-192 autopilot computer Part Number 065-0042-15.

None, they represent the same unit. Original King Radio part numbers were 9 digits. For example, 066-3056-01. During the Bendix and King merger (i.e. Bendix/King), a new part numbering system was created that converted these 9 digit part numbers to 12 digits. Therefore, 066-3056-01 became 066-03056-0001. Despite this numbering change, units that were originally from the King Radio design still have the 9 digit part number format on the unit dataplate. The 12 digit format for King units appears to be used for catalog and internal Honeywell purposes only. Therefore, any unit that has a zero in its third to last number (i.e. XXX-XXXX-X0XX) has a 9 digit part number (i.e. XXX-XXXX-XXX) on its dataplate / ID Plate.
In January 1989 Bendix/King changed from a nine digit to a twelve digit part numbering system. The new, larger 12 digit numbers allowed for the inclusion of software version into the last two digits of the part number for certain units in which software changed frequently such as EFIS and TCAS processors. Therefore, the two digits immediately preceding the software version indicate the hardware version of the unit.

Different software versions imply different operational features and/or interface capabilities and software modifications imply software repairs (bug fixes) to insure proper operation of these features and interfaces. Software version upgrades frequently require hardware modifications to the unit. Such hardware modifications accompanying software version upgrades do not necessarily change the hardware version of the unit.

Yes, due to the delicate construction of these instruments, Southeast Aerospace follows the Honeywell Service Memo #377 in relation to specifications for transportation and handling of the KI-256 Flight Indicator and KG-258 Gyro.
Please see the Honeywell Service Memo for detailed information.

No. At one time, Bendix/King offered the KI-254 (P/N 060-0037-XX) as an electric alternative for the air driven KI-256 flight director indicator. The KI-254 was a 28 VDC unit only. The KI-254 was manufacture red by Castleberry instruments for Bendix/King. Castleberry no longer manufactures the KI-254 nor offers an alternative. It should be noted also that none of the KFC-150 or KFC-200 STC installation manuals include the KI-254 flight director indicator.

The KI-256 is a gyro based attitude indicator that is an integral part of the KFC-200 flight control system. The KFC-200 autopilot is installed per STC. Therefore, it cannot be easily removed and replaced with another instrument.

Recently, Garmin has developed the G600 flight deck retrofit that integrates with existing KFC-200 systems. This is a system that integrates many flight display and navigation features not simply attitude and flight control information. The dual screen G600 integrates with other Garmin avionics systems such as the GNS430/530 providing both Primary Flight Display (PFD) and Multi-Function Display (MFD) functions. Furthermore, the Garmin GAD-43 adapter eliminates the system's need for gyro instruments such as the KI-256. The GAD-43 provides AHRS attitude/heading reference.

Therefore, there is not a plug-and-play, direct replacement solution for the KI-256 instrument only.

Negotiating the exchange price of a unit only limits the allowable repair cap for the core unit. Southeast Aerospace's exchange transactions are based on the return of economically repairable core unit. Once the core is received and evaluated, the core repair cost incurred by SEA cannot exceed 75% of the original exchange price. That is, it cannot cost SEA more than 75% of the original OH/SV exchange price collected from the customer. Therefore, when and if an SEA exchange price is discounted, there is a risk that additional charges may be assessed once the core is returned and evaluated.

At Southeast Aerospace, an overhaul of a KI-256 involves a complete teardown of the unit replacing all bearings and worn or defective parts. To maximize the service life of the rotor bearings after they are replaced, the rotor is initially balanced to within tolerance. They are then run-in for a minimum of 52 hours while rebalancing the rotor during and after the run-in period. All work is also performed at Southeast Aerospace in our ISO class 8 certified clean room to prevent contamination during buildup and alignment of the instrument. Upon completion of alignment to factory specs and required test procedures, the KI-256 is then run on the Scorsby table for a minimum of two more hours for quality assurance.