What was found
(CAN) DURING DOOR REPAIR, INSPECTION OF LATCHING MECH ON FUSELAGE WAS CARRIED OUT. RECEPTICLE CRACKS WERE NOTICED VISUALLY ON 6 OF 7 RECEPTICLES. LATCHING RECEPTICLE CONTAINS AN ECCENTRIC FITTING SITS IN RECEPTICLE TO ADJUST FOR ALIGNMENT OF CABIN DOOR WHEN CLOSED. CRACKS IN RECEPTICLES CAN`T BE SEEN IF ECCENTRICS ARE INSTALLED. THESE RECEPTICLES ARE ALL ALUMINUM EXCEPT FOR NR 7 WHICH IS LOCATED AT TOP OF FUSELAGE THAT ONE IS STEEL. NR 7 RECEPTICLE ALSO DOESN`T REQUIRE AN ECCENTRIC FITTING. RECEPTICLES WERE REMOVED FROM A A/C PREVIOUSLY REMOVED FROM SERVICE & SENT FOR NDT INSPECTION PRIOR TO INSTALLATION. WERE ALSO ALL CRACKED SIMILAR TO ONES REMOVED FROM AIRCRAFT.