Abstract: A retaining element for retaining a component within a receiving part, the retaining element including: a neck portion to be received within a notch formed in the receiving part; a first head portion coupled to the neck portion end and defining a first shoulder; a second head portion coupled to another neck portion end and defining a second shoulder, wherein the first and second shoulders oppose one another and are to abut first and second surfaces of the receiving part so as to engage the retaining element with the receiving part; wherein the first and/or second head portions include a retaining tab having a retaining surface, wherein the retaining tab has a receiving position for receiving the component and retaining position for retaining the component; wherein, in the retaining position, the retaining tab extends beyond the neck portion so the retaining surface abuts the component surface to retain the component.

Abstract: Apparatus to enable rotation of a compressor, the apparatus comprising: a guide for insertion through a fan of a gas turbine engine to the compressor, the guide including: a surface arranged to guide a drive assembly through an interior portion of the gas turbine engine to the compressor; and a first fastener arranged to fasten the guide to the gas turbine engine.

Abstract: A retaining element for retaining a component within a receiving part, the retaining element including: a neck portion to be received within a notch formed in the receiving part; a first head portion coupled to the neck portion end and defining a first shoulder; a second head portion coupled to another neck portion end and defining a second shoulder, wherein the first and second shoulders oppose one another and are to abut first and second surfaces of the receiving part so as to engage the retaining element with the receiving part; wherein the first and/or second head portions include a retaining tab having a retaining surface, wherein the retaining tab has a receiving position for receiving the component and retaining position for retaining the component; wherein, in the retaining position, the retaining tab extends beyond the neck portion so the retaining surface abuts the component surface to retain the component.

Abstract: Apparatus to enable rotation of a compressor, the apparatus comprising: a guide for insertion through a fan of a gas turbine engine to the compressor, the guide including: a surface arranged to guide a drive assembly through an interior portion of the gas turbine engine to the compressor; and a first fastener arranged to fasten the guide to the gas turbine engine.