What was found
KIT OBTAINED FROM MFG. FOR OPTIONAL TN11REV2. KIT CONSISTED OF DWGS./INSTRUCTIONS/PARTS/HARDWARE FOR SECOND PAIR OF AIRBRAKE PANELS. IT WAS IMMEDIATELY APPARENT THAT INSTRUCTIONS WERE FROM AN EARLIER VERSION, AS DWGS./PARTS/HARDWARE SUPPLIED WERE DIFFERENT FROM WHAT WAS OUTLINED IN THE INSTRUCTIONS. COMMS WITH MFG./DISTRIBUTOR PROVED FRUITLESS - ANYONE DIRECTLY INVOLVED WITH THIS TN IS LONG RETIRED, ALSO A LANGUAGE BARRIER. AFTER CAREFUL DELIBERATION I WAS ABLE TO DEDUCE WHICH PARTS OF THE INSTRUCTIONS WERE NOT PERTINENT (OMITTED PARTS AND ASSOCIATED DETAIL DWGS WERE CROSSED OUT BY THE MFG.) AND PROCEEDED WITH ALTERATION. PROVIDED M6 BOLTS WERE NOT LONG ENOUGH TO ENGAGE THE LOCKNUTS, AND I OBTAINED LONGER ONES AND GROUND THEM DOWN FLUSH AFTER INSTALLATION. THIS PROVED INADEQUATE TO PROVIDE CLEARANCE BETWEEN THE HARDWARE AND ORIGINAL AIRBRAKE PANELS, THUS I EVEN GROUND LOCKNUTS THEMSELVES, BUT NOT TO THE POINT OF HARMING THEIR EFFECTIVENESS. EVEN THIS WAS INADEQUATE - AIRBRAKES JAMMED OPEN ON THE FIRST TEST FLIGHT. I SUBSEQUENTLY REDUCED TOTAL AIRBRAKE TRAVEL APPX. 4MM SO ORIGINAL AIRBRAKE PANELS COULD NOT CATCH ON CLAMP HARDWARE FOR NEW PANELS. THIS WAS ACCOMPLISHED BY MOVING THE COCKPIT STOP APPX. 1/2". THE TCDS DOES NOT SPECIFY AIRBRAKE DEFLECTION, AND THE REDUCTION STILL MAKES FOR MUCH MORE AIRBRAKE EFFECTIVENESS WITH THE SECOND PAIR OF PANELS INSTALLED. I RECOMMEND THE MFG. BE ENJOINED FROM DISTRIBUTING THIS KIT UNTIL ADEQUATE INSTRUCTIONS AND HARDWARE CAN BE PROVIDED.