United Technologies Corporation

Michael J Madel

William Bogue

Brian Kenneth Holland

Daniel M Stadtlander

Derek W Anderson

Oleg Ivanov

A method of repairing a turbine engine case includes the steps of removing worn material from a retention hook in a casing, and inserting an insert into a recess within the hook.

Turbine case retention hook with insert

A repair device and method for repairing a forward frame v-blade on an aircraft engine are described in which the repair device replaces a section of the forward frame v-blade. In one embodiment, the repair device includes a repair part and a splice plate, the combination of which is secured to the forward frame v-blade. The repair part includes a repair part web and a pair of stiffening legs with a leg thickness that is greater that the thickness of corresponding flanges on the forward frame v-blade. The splice plate is configured to accommodate for the increased thickness of the stiffening legs, providing by way of example a reduced thickness area compatible with the repair part. Fasteners such as rivets are used to couple the repair device to the splice plate, and to couple the splice plate to the forward frame v-blade.

Device and method for repairing a forward frame v-blade in an aircraft engine

A repair device and method for repairing a forward frame v-blade on an aircraft engine are described in which the repair device replaces a section of the forward frame v-blade. In one embodiment, the repair device includes a supplemental part, which is secured to the forward frame v-blade. The supplemental part includes a central web and a pair of legs with a leg thickness that is greater than the thickness of corresponding flanges on the forward frame v-blade. Fasteners such as rivets are used to couple the supplemental part to the forward frame v-blade.

Device and method for repairing a forward frame V-blade in an aircraft engine

A hinge arm having a hinge pin hole having a worn bore, for example a hinge arm of a hinge assembly of an access door on a gas turbine engine, is repaired by forming in the worn hinge arm a new hole with a keyway extending outwardly from the new hole. A keyed bushing is provided having a cylindrical body having a central bore extending axially therethrough and a key extending outwardly from the cylindrical hole. The keyed bushing is inserted into the new hole and keyway formed in the hinge arm thereby preventing rotation of the bushing relative to the hinge arm.

Hinge arm repair

A method of repairing a part, which has a first side, a second side opposite of the first side, and an aperture that makes the part susceptible to cracking, includes the steps of forming a slot in the first side of the part near the aperture, inserting a stiffener into the slot, and attaching at least one repair ply onto the first side of the part to cover the stiffener.

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Colchester, CT, United States of America

Michael J Madel