What was found
AFTER TAKEOFF WE HAD AN ELECTRIC BURN SMELL - NO INDICATION ASSOCIATED AN THE SMELL WENT AWAY AFTER A FEW MINUTES (FLIGHT 3572 - FILED CLOSED) COMPLIED WITH FIM TASK 21-21-00 AND FIM TASK 21-22-00. WHEN TALKING TO CREW THEY SAID BURNING SMELL WAS ON TAKE OFF FOR A COUPLE OF MIN. THEN DISAPPEARED AND DID NOT RETURN, WITH ENGINES OPERATING ONLY. SMELL WAS THROUGH WHOLE AIRCRAFT MEANING BOTH CABIN AND FLIGHT DECK. ACCOMPLISHED FIM 21-22-00 SECT. C, PARTS 7 AND 9. FIG. 206 AND FIG. 208 FOR CONTAMINATED PNEUMATIC SYSTEM DUE TO COMPRESSOR WASH. PERFORMED DRYING RUN PER 72-00-00-100-801 SECTION G NO SMELL REMAINS IN PNEUMATIC SYSTEMS. CHECKED NUMEROUS ELECTRICAL SYSTEMS AND RECIRCULATION FANS. PNEUMATIC SYSTEMS OPS CHECK GOOD AT THIS TIME REF. AMM 21-51-00.