3027(A-034-4-16)

Audible Indication Assembly Board 3027 is a functional electronic board designed for operation as part of airborne indicator units A-034-4-16, A-034-4-22, and A-034-4-11. The board is included in the equipment set of the A-037 radio altimeter and serves as an internal module of the indicator responsible for audible alert generation.

The 3027 board is intended to form and control audible warning signals associated with radio altimeter operation. Within the indicator, it provides generation, processing, and output of audio signals used for crew notification when predefined altitude thresholds or operating conditions are reached. The board operates in conjunction with other indicator and radio altimeter modules to ensure correct warning logic.

The Audible Indication Assembly Board 3027 is not a standalone device and is designed exclusively for use within indicator units A-034-4-16, A-034-4-22, and A-034-4-11 that are part of the A-037 radio altimeter system. Electrical operating modes, functional characteristics, and performance parameters of the board are defined at the system level and are regulated by the technical documentation of the indicator and the radio altimeter.

Structurally, the board is manufactured as an electronic printed circuit board installed inside the indicator housing. The design ensures electrical and functional compatibility with other boards of the indicator and stable operation under specified operating conditions.

According to the product passport, the section “Basic Technical Data” for the Audible Indication Assembly Board 3027 is not specified. Reliability parameters, service life, and storage life correspond to those of the A-037 radio altimeter and its associated indicator units.

Operation of the Audible Indication Assembly Board 3027 is permitted only in accordance with the applicable technical documentation of the indicator units and the radio altimeter system.

Alternate Designations (EN)

3027
Audible Indication Board 3027
Audible Warning Assembly 3027
Sound Indication Board 3027

Product Name: Audible Indication Assembly Board
Part Number: 3027
Product Type: Electronic audible indication board
Function: Generation and control of audible warning signals
Application: A-037 Radio Altimeter equipment set
Installed In Indicators: A-034-4-16, A-034-4-22, A-034-4-11
Basic Technical Data: Not specified
Operation Mode: Installed inside indicator units
Service Life: Corresponds to A-037 radio altimeter
Storage Life: Corresponds to A-037 radio altimeter
Warranty Operating Time: 2000 hours
Warranty Storage Period: 2 years
Documentation: Product passport VRO.015.000 ET

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.