A simple one after all those dit’s!
The BK117 has a pair of sliding yaw pedals, and when flying with the duals removed a cover over them becomes a footrest for the front seat passenger.
Cue a long day out to fire lines with a full load of VIPs, pre start a quick push check for full and free on the pedals showed a marked lack of movement. Needless to say the apprentice had been given the job of installing the cover and not moved the pedals along their bars to the furthest forward position, hence they were nicely jammed against the inside of the cover.
Good start to the day, easily fixed and on our way
Re the earlier query about control movement check with engine running: the Sea King has an accessory drive which bypasses the MGB and gives hydraulic and AC power with stationary rotors, so a full and free after spreading the blades is/was part of the start checks. I imagine that other Sikorsky products would have something similar?