What was found
AFTER TAKEOFF, GEAR DISAGREE AND GEAR DOORS EICAS MESSAGES APPEARED ACCOMPANIED BY AN AUDIBLE AND TACTILE INDICATION THAT THE GEAR AND/OR GEAR DOORS WERE NOT RETRACTED. APPROXIMATELY 3 MINUTES LATER ALL EICAS MESSAGES AND ACCOMPANYING INDICATORS CEASED. ALL INDICATIONS WERE NORMAL DURING GEAR EXTENSION. REMOVED AND REPLACED LANDING GEAR CONTROL LEVER MODULE IAW MM, INSTALLATION TEST PASSED. ACCOMPLISHED PSEU BITE IAW FIM, NO FAULTS CODES NOTED. MEL PROCEDURS REVERSED AND PLACARD REMOVED, ACFT OK TO CONTINUE.