Flaps Retrofit Set for Early Embraer Phenom 100s

 - March 18, 2009, 11:25 AM

Embraer is paying for a service bulletin to replace flap-controller units in the first 10 to 20 Phenom 100 very light jets. The new controller units will have updated software to fix a “nuisance failure” problem that causes the flaps not to work. “The failure does not actually exist,” explained Embraer’s Mauricio Martins de Almeida Filho, “but the system interprets it as a ‘flap fail’ condition and triggers a fail-safe shutdown. In most occurrences a new command on the [flap] lever is capable of recovering the system, but in a few cases maintenance action (a system re-rig) is required.” An Airworthiness Directive (AD2009-05-06) also affects the flap system and calls for new procedures and limitations section revisions in the AFM, due to “a possibility that during a go-around procedure with a flap system failed the stall warning and the stick pusher triggering angles are anticipated reducing the margin between the real angle of attack and the stick pusher triggering angle.”

February 2017
Built on a powerhouse of tradition