A LEAD MECHANIC REPORTS ON THE CONFUSION AND COMPLEXITY OF IMPLEMENTING AN AIRWORTHINESS DIRECTIVE; WHILE USING AN INADEQUATE PICTURE; THAT REQUIRES DIFFERENT CLAMPS TO SECURE THE CL600-2B19 ENGINE IDG HARNESS TO A FUEL LINE.

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IN AUG/08; ACFT X WAS IN ZZZ FOR AN ENG CHANGE. ONCE THE ENG WAS HUNG; WE STARTED TO DO THE TASK CARD WHICH ENTAILS AN INSPECTION OF THE PROPER INSTALLATION OF CLAMPS AND CONDUIT FOR R ENG IDG CABLES. THE TASK CARD STATES THE NEED TO VERIFY THE PRESENCE OF 2 WHITE 'P' CLAMPS INSTALLED ON OIL LINE WITH 3 INCHES OF CONDUIT BTWN THE #4 CLAMP AND 2 WHITE 'P' CLAMPS. I THEN VERIFIED ALONG WITH MECH; I INITIALED THE RII STATING IT WAS IN COMPLIANCE. IN DEC/08; AN FAA INSPECTOR NOTED ON A RANDOM INSPECTION OF ACFT IN HANGAR THAT HE BELIEVES THE INSTALLATION WAS NOT CORRECT AND TO DOUBLECHK INSTALLATION. IT WAS THEN NOTED BY US THAT THE 2 WHITE 'P' CLAMPS WERE NOT INSTALLED AS PER THE AIRWORTHINESS DIRECTIVE; HOWEVER; THE 3 INCH CONDUIT WAS PRESENT. THE ONLY THING NEEDED WAS TO ADD THE CLAMPS AND THEN THE ACFT WOULD HAVE BEEN COMPLIANT. MAINT SUGGESTIONS: THIS IS NOT RELEVANT TO THE MISSING CLAMPS IN QUESTION BUT IT SHOULD BE NOTED THAT THE AIRWORTHINESS DIRECTIVE; SVC BULLETIN; AND THE ACR ISSUED TASK CARD DO NOT MATCH WHAT IS ACTUALLY ON THE ACFT. THE PROC FOR THE INSTALLATION OF CONDUIT IS NOT CORRECT. IT STATES TO REMOVE #1 AND #2 CLAMPS FROM IDG AND SLIP CONDUIT OVER THE CABLES UP TO THE #3 CLAMP AND THEN TO INSTALL WHITE 'P' CLAMPS. THIS IS INCORRECT BECAUSE THE ACFT HAS 4 CLAMPS AND BY THIS I MEAN THAT YOU WOULD HAVE TO REMOVE #1; #2; AND #3 CLAMPS AND SLIDE CONDUIT TO THE #4 CLAMP TO ACTUALLY CORRECTLY MATCH THE ILLUSTRATION ON THE TASK CARD; SVC BULLETIN; AND THE AIRWORTHINESS DIRECTIVE GIVEN UNLESS WE ARE TO REMOVE ONE OF THE CLAMPS; BUT I HAVE NOT SEEN THIS IN ANY TASK OR AMM REF. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: REPORTER STATED HE IS A LEAD MECHANIC; WHO WAS UPGRADED TO AN INSPECTOR; TO SIGNOFF REQUIRED INSPECTION ITEMS. THE PICTURE USED AS A GUIDE BY MECHANICS; TO IMPLEMENT AIRWORTHINESS DIRECTIVE 2001-06-07; IS NOT ACCURATE. THE AD REQUIRES INSTALLING A PROTECTIVE SLEEVE ON EACH ENGINE IDG POWER CABLE HARNESS AND MODIFYING THE CLAMP LOCATIONS AND SPECIFIC STANDOFF ARRANGEMENTS THAT SECURE THE CL600-2B19 AIRCRAFT ENGINE IDG POWER CABLES TO A FUEL LINE. THERE ARE FOUR CLAMPS; NUMBERED #1-2-3-4 REFERENCED IN THE SERVICE BULLETIN #A601R-24-103; USED TO IMPLEMENT THE AD. BUT; THE PICTURE ONLY SHOWS CLAMPS #2 3 AND 4. AS A RESULT; THE MECHANIC PERFORMING THE MODIFICATION THINKS THE CLAMP IN THE PICTURE STARTS WITH CLAMP #1; WHEN IN FACT; HE IS SEEING THE #2 CLAMP. REPORTER STATED HIS CARRIER DECIDED NOT TO CHANGE THE PICTURE; BUT TO ADD MORE TEXT TO THE MECHANIC'S JOB CARD EXPLAINING WHAT TO ACTUALLY LOOK FOR. HE WAS RECENTLY INFORMED THAT DUE TO THE CONTINUING CONFUSION AND INCORRECT INSTALLATION OF THE CLAMPS; ALONG WITH THE MULTIPLE; DIFFERENT 'PRE' AND 'POST' PRODUCTION SERIES OF CRJ'S AFFECTED BY THE AD; THE FAA HAS DECIDED TO 'STANDARDIZED' THE MODIFICATION IN THE NEAR FUTURE.