Narrative:

Departed ZZZ as scheduled. During climb out first officer's flight instruments failed. All flags appeared. Autoplt disengaged; flight instruments returned to normal and then failed again starting a cycle of this pattern. Ir 2 failed then appeared to come back. We decided to return to ZZZ; requested xxr. As we were vectored back for the approach in ZZZ various annunciator lights came on then would extinguish. (No bus off lights ever illuminated.) lights: automatic brake inoperative; right pitot static; forward cargo/aft cargo; #2 electric hydraulic low pressure; left forward/aft right fuel pump low pressure. Equipment. Electric trim was inoperative; #2 communication inoperative. Landed uneventfully; TR2 and TR3 had popped respective breakers. WX was VFR; landing weight was 120.5 pounds.

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Original NASA ASRS Text

Title: B737 FO REPORTS NUMEROUS ELECTRICAL MALFUNCTIONS ON DEPARTURE WHICH CORRECT THEMSELVES THEN REAPPEAR. FLT CREW RETURNS TO DEPARTURE ARPT.

Narrative: DEPARTED ZZZ AS SCHEDULED. DURING CLBOUT FO'S FLT INSTS FAILED. ALL FLAGS APPEARED. AUTOPLT DISENGAGED; FLT INSTS RETURNED TO NORMAL AND THEN FAILED AGAIN STARTING A CYCLE OF THIS PATTERN. IR 2 FAILED THEN APPEARED TO COME BACK. WE DECIDED TO RETURN TO ZZZ; REQUESTED XXR. AS WE WERE VECTORED BACK FOR THE APCH IN ZZZ VARIOUS ANNUNCIATOR LIGHTS CAME ON THEN WOULD EXTINGUISH. (NO BUS OFF LIGHTS EVER ILLUMINATED.) LIGHTS: AUTO BRAKE INOP; R PITOT STATIC; FORWARD CARGO/AFT CARGO; #2 ELECTRIC HYD LOW PRESSURE; L FORWARD/AFT R FUEL PUMP LOW PRESSURE. EQUIP. ELECTRIC TRIM WAS INOP; #2 COM INOP. LANDED UNEVENTFULLY; TR2 AND TR3 HAD POPPED RESPECTIVE BREAKERS. WX WAS VFR; LNDG WT WAS 120.5 LBS.

Data retrieved from NASA's ASRS site as of May 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.