NTSB Recommends Airbus Autopilot Modifications for Trim Alerts
The National Transportation Safety Board urges the Federal Aviation Administration to require perceptual alerts for stabilizer motion.
The National Transportation Safety Board has issued a recommendation directed at the Federal Aviation Administration regarding the safety of Airbus A-300 and A-310 series aircraft. The board advises that the agency should mandate modifications to the autopilot systems found on these specific aircraft models. The primary objective of this proposed modification is to ensure that the systems provide a sufficient perceptual alert whenever the trimmable horizontal stabilizer is in motion. This requirement applies irrespective of the source of the trim command, aiming to enhance situational awareness for flight crews during such operations.
Original regulatory source: https://data.ntsb.gov/carol-main-public/sr-details/A-94-166