What was found
GEAR DOORS EICAS OPERATED GEAR DOORS MANUALLY WITH BELLY SWITCHES AND DOORS EXTEND AND RETRACT AS REQUIRED. PERFORMED FIM TASK 32-61 FAULT TREE 827 UPON ARRIVAL ON A/C FOUND NO MSG. PERFORMED PSEU BITE PROCEDURE AND FOUND NO FAULT MSGS. PERFORMED MAIN GEAR EXTENSION AND RETRACTION OPS CHECK REF AMM 32-32-00-705-001-001. RH DOOR WOULD NOT GO UP. RESET SAFETY VALVE AND ALL SUBSEQUENT EXTENSION AND RETRACTIONS WORKED PROPERLY. 5 EXTENSIOIN AND RETRACTIONS PERFORMED. REMOVED AND REPLACED MAIN LANDING GEAR DOOR SAFETY VALVE PRECAUTIONARY REF AMM 32-35-10-004-001-001. PERFORMED 6 MORE EXTENSION AND RETRACTIONS OPS CHECK GOOD ABOVE MAINTENANCE PERFORMED.