Part #: 4009506-8501

Model: 3013J

Honeywell - Primary Servo
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Part Number :

  • Primary Servo used in Bendix M-4D Automatic Flight Control System
  • Low speed servo containing disconnect clutch when Autopilot is not in use
  • Control power application to the aircraft surface by means of magnetic power clutches
  • Assembled to 2268A-1 capstan which connects servo output pinion with aircraft cable rigging


Power Source: DC motor geared to input of magnetic power clutches Power Control: Magnetic power clutch for either direction of operation
Power Application: Cable drive drum with torque limiting clutch Weight: 6.6 lbs. (2.99 kg)
Part NumberPrimary Servo Description:
4009506-8501 see details above


- Primary Servo
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

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.