Airworthiness Directives; Columbia Helicopters, Inc. and Restricted Category Model CH-47D Helicopters
Columbia Helicopters, Inc. and Restricted Category Model CH-47D
routine
FAA-2026-3483Proposed RuleApr 14, 2026
Airworthiness Directives; Restricted Category Model CH-47D Helicopters
Restricted Category Model CH-47D
routine
FAA-2025-5394Proposed RuleDec 22, 2025
Airworthiness Directives; Columbia Helicopters, Inc., and Restricted Category Model CH-47D Helicopters
Columbia Helicopters, Inc., and Restricted Category Model CH-47D
important
FAA-2024-2329RuleOct 11, 2024