What was found
FLIGHT TEST, SHORTLY AFTER TAKEOFF AT 1000 FEET COCKPIT & COURIER AREA FILLED WITH MODERATE TO HEAVY SMOKE, FUMES WITH AN ACRID OIL SMELL. IAW NORMAL TEST FLIGHT PROCEDURE, APU AIR USED AS BLEED SOURCE FOR AIR CONDITIONING. SEVERAL LEVEL 3 ECAM CARGO COMPARTMENT SMOKE WARNINGS ACTIVATED INCLUDING MID & AFT COMPARTMENTS. ECAM & QRH PROCEDURES FOLLOWED WHICH CLOSES MAIN DECK ISO VALVES, BULK CARGO ISOLATION VALVES & NR 2 PACK FLOW VALVES. AFTER 5 MINUTES SMOKE WARNINGS CEASED & SMOKE DISSIPATED. EMERGENCY LANDING EXECUTED. REPLACED THE SIX AIR CHECK VALVES OF HYD RESERVOIR PRESSURIZATION PER AMM 29-11- 11-04 REPALCED THE THREE VALVES-DEPRESSURIZATION/RELIEF PER AMM 29-12-21- 04 ,CLEANED THE INTERNAL AREA OF LT AND RT WATER SEPARATORS AND REPLACED THE COALESCERS PER AMM 21-51-16-03. CHECKED THE APU BLEED DUCTS PER AMM 36-12-00-06. OPERATED BOTH A/C PACKS USING APU BLEED ,ENG BLEED &GROUND PNEUMATIC SOURCE PER AMM 21-51-00-05 & AMM71-00-00-05, TESTED NORMAL ,NO LEAKAGE AND NO SMELL. MINOR REPAIR IAW FEDEX GMM-6-2-100