What was found
ENGINE 2 LOW OIL PRESSURE AND QUANTITY DROPPING UPON TAKEOFF. CREW DECLARED AN EMERGENCY AND LANDED SAFELY. CREW WROTE UP IN LOG BOOK "SHORTLY AFTER ROTATION NOTICED NR 2 ENGINE OIL QTY DROPPING ENGINE CONTINUED TO RUN AND WAS NOT SHUT DOWN UNTIL AFTER LANDING. ALL OTHER PARAMETERS APPEARED NORMAL. QTY REACHED 1 QT PRIOR TO TOUCHDOWN". MAINTENANCE DISCOVERED EMPTY OIL TANK AND DEBRIS ON THE SCAVENGE OIL SCREEN AS WELL. ENGINE NR 2 SN 697990 WITH 21918FH AND 7643FC IS BEING R & R. THE ROOT CAUSE OF FAILURE IS NOT KNOWN AT THIS TIME BUT ONCE ENGINE GETS TO THE SHOP FINDINGS WILL BE AVAILABLE.