What was found
(CAN) VIBRATION ON NR 2 ENGINE, (DURING CLIMB) INCREASING WITH ALTITUDE , ADVISORY 3.5 UNIT AT 22 000 FT AT 5.0 UNIT , FELT AIRFRAME VIBRATION. THE AIRCRAFT MADE AN AIR TURN BACK. A BLADES OFF INSPECTION WAS CARRIED OUT I.A.W. ENGINEERING ORDER 5-7231-001 ( BLADE ROOT INSP. C/OUT , NO FAULTS FOUND, BLADE ROOTS WERE CLEANED , LUBRICATED AND RE-INSTALLED) ENGINE RUN C/OUT SERVICEABLE.NOTE THE AIRCRAFT MADE AN OVERWEIGHT LANDING IN YMX AT 206 000 KGS , AUTOLAND PERFORMED , TOUCH DOWN AT 200 FEET/MINUTE.NO INSP. FOR HARD/OVERWEIGHT LANDING REQUIRED I.A.W. AMM 05-51-11-200-801.