AD 2020-11-10 Due To Report Of An In-Flight Event Where A Flightcrew Observed A SPOILER FAIL Message

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-100-1A10 airplanes.

This AD was prompted by a report of an in-flight event where a flightcrew observed a SPOILER FAIL message and had difficulty maintaining roll control of the airplane. This AD requires revising the existing airplane flight manual (AFM) to provide the flightcrew with procedures related to roll spoiler failures that reduce the flightcrew workload during this type of failure scenario. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective July 14, 2020.

Supplementary Information: Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian AD CF-2019-29, dated August 12, 2019 (also referred to as the Mandatory Continuing Airworthiness Information, or “the MCAI”), to correct an unsafe condition for certain Bombardier, Inc., Model BD-100-1A10 airplanes. You may examine the MCAI in the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2019-1076. The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain Bombardier, Inc., Model BD-100-1A10 airplanes.

The NPRM published in the Federal Register on January 22, 2020 (85 FR 3553). The NPRM was prompted by a report of an in-flight event where a flightcrew observed a SPOILER FAIL message and had difficulty maintaining roll control of the airplane. The NPRM proposed to require revising the existing AFM to provide the flightcrew with procedures related to roll spoiler failures that reduce the flightcrew workload during this type of failure scenario. The FAA is issuing this AD to address uncommanded deployment of the multi-function spoiler at certain positions, which in combination with specific flap positions and airspeeds, could create an unacceptably high flightcrew workload in maintaining roll control of the airplane and could possibly lead to loss of controllability of the airplane. See the MCAI for additional background information.

FMI: www.regulations.gov