The Boeing Company

Philip Belanger

Seiya Sakurai

Gary D Oakes

Jack S Noble

Kee How Tan

According to an embodiment, a flap malfunction indicator assembly for notifying an observer making a walk-around inspection of an aircraft of a malfunction of one or more connection points coupling a flap assembly to an aircraft wing includes a support mounted to the flap assembly having a perimeter defining an area, an indicator arm pivoted to the support and movable between a first stowed position in which a major portion of the arm is arranged substantially entirely within the area and a second deployed position in which a major portion of the arm is arranged substantially outside the area, a frangible pin or fastener securing the indicator arm to the support in the first stowed position, a trigger element mounted for rotation about a first pivot, an elongated pull linkage coupling the trigger element with a flap assembly, the pull linkage being supported for movement relative to the first pivot to cause rotation of the trigger element when malfunction of a flap assembly occurs, and a spring assembly at the support having one portion exerting a biasing force against a portion of the indicator arm located outside of the area, the spring assembly driving the indicator arm into the second deployed position when the frangible pin or fastener is broken.

Growing community of inventors

Redmond, WA, United States of America

Philip Belanger