STC21 Limited - Installation of TCAS Provisions (wiring) with GPS Antenna: Navigation – Traffic Collision Avoidance System – Modification

Proposed Airworthiness Directive 

Consultation Period Closure Date 30 October 2026 

Applicable to BAE AVRO 146-RJ85A aircraft:

E2307, E2310, E2311, E2326, E2329, E2330, E2333, E2334, E2335, E2337, E2344, E2345, E2346, E2347, E2348, E2349, E2350, E2351, E2352, E2363, E2364, E2365, E2366, E2367, E2370, E2371, E2372, E2386

This AD is not applicable to aircraft which have STC UK.STC.00319 embodied.