MD80 CREW LOST THE R HYD SYS. THE ACFT WAS EVACED AFTER LNDG AFTER HYD SMOKE ENTERED THE CABIN.

Narrative

THE EVENT WAS A SUCCESSFUL EMER EVAC OF PAX. THE CAUSE WAS FROM HYD SMOKE FUMES COMING INTO THE CABIN AFTER ACFT WAS STOPPED. THE R HYD SYS FAILED 1 HR INTO THE FLT. THE CREW PERFORMED THE ABNORMAL CHKLIST AND PLANNED FOR ALL POSSIBLE SCENARIOS UPON OUR ARR AT IAH. THE COCKPIT CREW FORMULATED A PLAN AND BRIEFED THE FLT ATTENDANTS ON THE POTENTIAL EVENTS THAT MAY UNFOLD ON ARR/LNDG AND ASK THAT THEY PREPARE THEMSELVES FOR EACH SCENARIO; INCLUDING AN EVAC. OUR PLAN WAS TO BEGIN CONFIGN EARLY TO ALLOW TIME FOR THE POSSIBILITY OF MANUALLY EXTENDING THE LNDG GEAR IN THE EVENT THE R HYD SYS REMAINING FLUID/PRESSURE FAILED. COORD 1+30 OUT OF IAH WAS MADE WITH ATC FOR RWY SELECTION AND POSSIBILITY OF STOPPING ON RWY TO SECURE GEAR AND DOORS. COORD WITH MAINT WAS ACCOMPLISHED AS WELL. THE MANUAL GEAR EXTENSION PROC WAS PERFORMED AFTER INITIAL EFFORT FAILED DUE TO R SYS MALFUNCTION. CHKLISTS WERE ACCOMPLISHED; FLT ATTENDANTS INFORMED THAT WE WOULD STOP ON RWY FOR GEAR PIN INSTALLATION AND AN EMER WAS DECLARED WITH IAH APCH CTL. LNDG WAS UNEVENTFUL AND ACFT STOPPED ON RWY. I WAS TALKING WITH MAINT SUPVR ON GND TO COCKPIT INTERPHONE WHEN THE FLT ATTENDANT INFORMED THE FO THAT SMOKE WAS FILLING THE CABIN. THE DECISION WAS MADE TO EVAC THE ACFT. THE ANNOUNCEMENT WAS MADE TO THE PAX AND THE FO COMPLETED THE EVAC CHKLIST. SUPPLEMENTAL INFO FROM ACN 613776: FLT ATTENDANT CALLED AND SAID WE HAD LOTS OF SMOKE IN CABIN. CAPT ORDERED EVAC. COM AND BRIEFING WITH ALL CONCERNED ENDED WITH SUCCESSFUL EVOLUTION WITH NO INJURIES.