What was found
AFTER TAKEOFF, A BURNING ODOR IN ACFT. (NON ELECTRICAL) F/A FIRST NOTICED. COCKPIT INDICATORS NORMAL, NO OUTSIDE PARAMATERS. FLIGHT ONLY LASTED 10 MINS W/ODOR WHOLE FLT. NO LINGERING ODORS OBSERVED. GAINED ACCESS TO APU & PERFORMED GIV OF APU AND BOX. NO DISCREPANCIES. OIL LEVELS GOOD. PERFORMED A GVI OF PACKS & DUCTING, NO DISCREPANCIES. OPENED WATER SEPARATORS & INSPECTED SOCK & DUCTING FOR OIL. NO DISCREPANCIES. PWR ACFT & STARTED APU. NO ODOR. INSP ALL GALLEY EQUIP. NO DISCREPANCIES. RAN APU FOR APPROX 1 HR, NO ODOR. RAN BOTH ENGS 2 TIMES FOR APPROX 30 AT DIFFERENT POWER LEVELS & SWITCH BLEED FROM APU TO ENG & NO ORDERS. SHUT DOWN ENGINES & LEFT APU ON FOR 30 MIN, NO DISCREPANCIES. IAW AMM21-00-00.