FAA proposes AD to address Challenger 600-series flap malfunction risk - AeroTime
FAA proposes Airworthiness Directive (AD) for Challenger 600-series aircraft to address flap malfunction risk, requiring inspection and corrective actions.
Aforeworn detected this change in the Aviation Maintenance & Airworthiness (FAA) space on July 16, 2026 and published this briefing so affected operators are forewarned rather than caught off guard. It is rated High urgency. Operators of Challenger 600-series aircraft (Part 135/121, corporate flight departments) and Part 145 repair stations maintaining these aircraft. should confirm how it applies to their specific situation before acting. There is a time constraint attached: Comments due 45 days from publication in Federal Register; compliance required within 30 days after final AD effective date.. Acting after that point can mean penalties, a lapsed licence, or lost eligibility — exactly the kind of surprise Aforeworn exists to prevent. Aforeworn monitors Aviation Maintenance & Airworthiness (FAA) continuously and turns every detected change into a plain-English briefing like this one, so you always know first. Forewarned is forearmed.
What changed
FAA issued a Notice of Proposed Rulemaking (NPRM) for a new AD mandating repetitive inspections of the flap system and corrective actions if discrepancies are found.
Who it affects
Operators of Challenger 600-series aircraft (Part 135/121, corporate flight departments) and Part 145 repair stations maintaining these aircraft.
What you must do
Review the proposed AD, comment by the deadline, and prepare for compliance once finalized. For affected aircraft, perform initial inspection within 30 days after AD effective date.
Deadline
Comments due 45 days from publication in Federal Register; compliance required within 30 days after final AD effective date.
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