Part #:

Model: IND-40

Collins Aerospace - DME Indicator
Part Number :


Image shown is IND-41A due to similarities in appearance however IND-40 units do not include selection switches as shown.

  • Compact DME indicator used with DME-40 Receiver/Transmitter
  • Less than 1 lb. in weight and only 1.66 inches high
  • Models available with black or gray bezel (see table below)
  • Rated for higher altitudes than 339F-12/A indicators
  • Similar to IND-40A/B/C indicators but DOES NOT include NAV1/NAV2/HOLD/NORM selections


FAA TSO: C66A RTCA document: DO-160
Environmental: C1/A/PKS/XXXXXXZZAZA Temperature: -15 to +55 C (continuous)
Altitude: 35000 ft. max. (operate) Dimensions: 3.38"W x 1.66"H x 7.048"L
Power Requirements: 27.5Vdc +-10%, 0.375A nominal    
Part NumberDME Indicator Description:
622-3915-001 Black panel color
622-3915-002 Gray panel color


- DME Indicator

NSN: 5840-01-188-4694

Price Condition Delivery

SEA Repair Capabilities: Yes

- DME Indicator
Price Condition Delivery

SEA Repair Capabilities: Yes

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.
Most of the Collins Proline I components were originally manufactured in the early 1970s. Collins has continued to produce some of the Proline I components by special order over the past 30 years however large scale production stopped many years ago. Most of the Collins Proline I product lines incorporates 1960s and 70s analog technology. Collins has superseded the Proline I product line several times with the Proline II, Proline IV, and Proline 21 lines. As a result, some service parts needed to maintain and repair original Collins Proline I components are no longer available. Therefore, you may experience limited to no warranty available and unreliability for many of the Proline I units.

Southeast Aerospace offers many affordable, upgradeable options that are available for aircraft with Collins Proline I. As avionics integration specialists and premiere Collins dealer, Southeast Aerospace is experienced and knowledgeable on all Collins Proline generations.

If you are interested in upgrading any of your original Collins Proline I systems, please contact us for the most reasonable, optimal choice available.