Accident and incident chains usually follow a similar pattern when a number of innocent errors stack to create an event. Despite 4,400 hours of total flight time, nearly three quarters of which had been logged in Cessna Citation CJs, a US-registered aircraft N680KH nearly got away from its pilot during an April 2019 incident near Bournemouth, England. A follow-up investigation showed the pilot simply did not read a critical AFM supplement, despite a close call just a month before.
Tamarack Responds to AAIB Report About 2019 CJ1 Incident
Key Takeaways:
- A Cessna Citation CJ1 pilot experienced a severe uncommanded roll and descent due to a failure in an aftermarket Tamarack Atlas winglet system.
- The incident was primarily caused by the pilot's failure to read the critical Aircraft Flight Manual (AFM) supplement for the system and not investigating a prior, similar malfunction.
- The investigation revealed that the AFM supplement inadequately characterized the failure's severity and that certification tests did not fully disclose potential outcomes.
- This event highlights the critical importance for pilots to thoroughly understand aircraft systems, especially for modified aircraft, and to diligently follow emergency procedures and investigate system anomalies.
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