AD 2022-08-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Canada Limited | Airworthiness Directives; Bell Textron Canada Limited Helicopters |
| aircraft | Bell | Textron Canada Limited | Airworthiness Directives; Bell Textron Canada Limited Helicopters |
Unsafe Condition
The loss of display and subsequent recovery of certain display units (DUs) manufactured by Rogerson Kratos (RK) due to excessive null waypoints generated by the Garmin GTN 750/650 GPS/NAV/COMM/MFD, which can cause a power cycle of the DUs during an instrument flight rules approach.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Revising the existing rotorcraft flight manual supplement (RFMS) for the helicopter and disabling the traffic alert and collision avoidance system (TCAS) POP-UP feature for certain DUs. The Emergency and Malfunction Procedures in the event of center DU failure should be implemented.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bell Textron Canada Limited Model 429 helicopters, serial numbers 57001 through 57369 inclusive, 57371, and 57373.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.