Abstract: A locking system to secure a trans cowl to a frame of a thrust reverser on an engine of an aircraft. The locking system includes an arm that is connected to the trans cowl with the arm having a receptacle. A lock includes a body and a pin with the pin movable relative to the body and with the lock positionable between a locked position and an unlocked position. In the locked position, the pin is in an extended position relative to the body that extends into the receptacle to secure the trans cowl in a stowed position. In the unlocked position, the pin is in a retracted position relative to the body that is away from the arm to enable the trans cowl to move to a deployed position.

Abstract: An aircraft engine cowling comprises a first cowling portion and a second cowling portion moveable relative to each other. A cowling latch secures the first cowling portion and the second cowling portion in a closed position. The aircraft engine cowling further comprises a deflection limiter band and a deflection limiter latch moveable between an engaged state and a disengaged state for the deflection limiter band. An interlock mechanism prevents disengagement of the cowling latch while the deflection limiter latch is in the engaged state. The interlock mechanism includes a lock element moveable between a first position that prevents disengagement of the cowling latch and a second position that enables disengagement of the cowling latch. The interlock mechanism also includes an indicator paddle movable to contact the deflection limiter latch. A linkage assembly coordinates movement of the lock element with movement of the indicator paddle.

Abstract: An aircraft engine cowling comprises a first cowling portion and a second cowling portion moveable relative to each other. A cowling latch secures the first cowling portion and the second cowling portion in a closed position. The aircraft engine cowling further comprises a deflection limiter band and a deflection limiter latch moveable between an engaged state and a disengaged state for the deflection limiter band. An interlock mechanism prevents disengagement of the cowling latch while the deflection limiter latch is in the engaged state. The interlock mechanism includes a lock element moveable between a first position that prevents disengagement of the cowling latch and a second position that enables disengagement of the cowling latch. The interlock mechanism also includes an indicator paddle movable to contact the deflection limiter latch. A linkage assembly coordinates movement of the lock element with movement of the indicator paddle.