What was found
ACFT WOULD NOT PRESSURIZE, RETURN TO DEPARTURE AIRPORT. PERFORMED CABIN PRESSURE CHECK IAW MM 21-00-00, TEST SATISFACTORY. PERFORMED CABIN DOOR WARNING OPS CHECK, FOUND NORMAL IAW MM 52-70-00. ACCOMPLISH PRECAUTIONARY DOOR HANDLE PULL CHECK ON L1, R1, & R2 DOORS IAW COMPANY REQUEST. ACCOMPLISHED DOOR HANDLE PULL CHECK ON L1, R1, & R2 DOORS IAW MM 52-11-00, 52-41-10 AND 52-42-00 ALL. CHECK IN LIMITS OF AMM.