British Gliding Association Aircraft Inspection Mandatory Number: 023/10/2001 Issue: 1 Date: 2nd October 2001 Subject: Trim Control Applicability: SZD 51-1 Junior Accomplishment: At next C of A inspection Reason: Trim control knob shaft failed and trim knob detached in flight allowing trim rod to drop and foul air brake control. Instructions: 1) Remove Trim Knob, spring and nylon sleeve – CAUTION spring under knob in compression 2) Inspect knob shaft for cracks or bending. Straightening of a bent rod is not recommended 3) Refit Nylon sleeve, spring and knob 4) Carry out an operational check of the trim control. Check for stiffness or lumpy operation 5) Record compliance in glider log book Approved By Jim Hammerton, Chief Technical Officer Issued by - The British Gliding Association Ltd, Kimberley House, Vaughan Way, Leicester, LE1 4SE, U.K. Note: Mandatory inspections must be recorded in the aircraft log book, unless specified, and certified by an appropriately rated BGA inspector. Optional inspections should be entered into the D.I. book or log book as appropriate. Optional inspections may be certified by a BGA Pilot. Alternative methods of compliance will be considered providing an equal level of safety is accomplished. Contact BGA for authorisation.