A B717 FLT CREW EXPERIENCED ACFT MESSAGE 'GEN L OFF;' FOLLOWED THE QRH; DECLARED AN EMERGENCY; AND DIVERTED TO THE NEAREST SUITABLE ARPT.

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AT FL350; 36 MI FROM ZZZ; ACFT MESSAGE 'GENERATOR L OFF;' 'L DC BUSS OFF.' CAPT WAS THE PF. GOT QRH OUT FOR 'GENERATOR L.' FOLLOWED THE CHKLIST; LED US TO DECLARING AN EMER. WE LANDED AT ZZZ ARPT. HAD TO MANUALLY EXTEND THE LNDG GEAR AS WELL AS MANUAL EXTENSION OF SPOILERS. MANY OTHER FAULTS OCCURRED AS A RESULT OF THE PCDU FAILING. COM #2; XPONDER #2; ACARS; AIRSPD INDICATOR; #6 SCREEN IN FRONT OF MANUAL DISCONNECT; L PACK; CABIN PRESSURE MANUAL; WING ICE FAILURE; PNEUMATIC FAILURE; AUTO TRIM FAILURE; STICK PUSHER FAILURE; GPWS FAILURE; DRAIN MAST FAILURE; PITOT AUX FAILURE; STALL WARNING FAILURE; DME #1 FAILURE; PODS FAULT. WE LANDED IN ZZZ AND HAD THE GEAR DOORS WIRED CLOSED AND THEN TOWED TO THE GATE. THE QRH FOR THE 'GENERATOR L OFF' HAS YOU REFER TO ANOTHER SECTION TO GET PROPER REF SPD FOR THE APCH. IT WOULD BE EASIER AND FASTER TO HAVE THAT CHART ON THE SAME PAGE AS THE 'GENERATOR L OFF' PAGE; RATHER THAN GOING TO ANOTHER SECTION IN THE QRH. OR MAYBE IF THE CHART CANNOT BE PUT ON THE SAME PAGE; THE PAGE NUMBER OF THE SPD CHART SHOULD BE ON THE 'GENERATOR L OFF' PAGE SO TO REDUCE TIME AND ERROR IN FINDING THE SPD CHART. SUPPLEMENTAL INFO FROM ACN 802214: MOST TROUBLESOME FAILURE WAS UNRELIABLE AIRSPD INDICATIONS (FOOT); AND VERY POOR RADIO COMS WHILE ON EMER PWR. ACARS INOP.