INSTRUCTOR WITH INST STUDENT HAS LOSS OF PWR ON L ENG. EMER DECLARED ENG FEATHERED. SUCCESSFUL LNDG MADE.

Narrative

WHILE INSTRUCTING A MULTI-ENG INST STUDENT IN VFR CONDITIONS; WE WERE WORKING WITH CHINOOK APCH VFR. UPON REACHING YAKIMA VOR AT 3500 FT MSL AND ENTERING HOLDING; THE L ENG LOST PWR. IMMEDIATELY I TOOK THE CTLS AND PERFORMED THE APPROPRIATE RESPONSES FOR LOSS OF ENG PWR. WITH MINOR TROUBLESHOOTING I NOTICED THE L ENG FUEL SELECTOR IN XFEED AND THE R ENG ON. THE L ENG FUEL GAUGE WAS READING EMPTY AND THE R GAUGE READING FULL. WITH CONSIDERATION OF ALT (BELOW 3000 FT AGL); PROX TO ARPT (5 MI) AND LIMITATIONS FOR XFEED OP (LEVEL FLT ONLY) I OPTED TO FEATHER THE L ENG AND CONTINUE TO YAKIMA; VFR; FOR A SINGLE-ENG LNDG. I DECLARED AN EMER WITH CHINOOK APCH AND; USING MY STUDENT TO OPERATE THE RADIOS; WE PROCEEDED DIRECT TO YAKIMA AIR TERMINAL WITHOUT FURTHER INCIDENT. THIS INSTRUCTION WAS WITH ANOTHER INSTRUCTOR'S STUDENT FOR CRITIQUE AND PROFICIENCY. DURING THE ACFT TAXI-OUT AND RUN-UP I MISSED THE STUDENT PUTTING THE FUEL SELECTORS BACK TO 'ON' DURING THE BEFORE TKOF CHKLIST. DURING MY CRUISE SCAN AND BACKUP OF STUDENT OP I DID NOT SEE THE L FUEL GAUGE DEPLETING DUE TO THE PROX OF THE GAUGE ON THE L SIDE OF THE CTL YOKE. BEFORE TKOF AND IN CRUISE I DID NOT NOTICE THE FUEL SELECTOR IN XFEED. IN THE YAKIMA TERMINAL AREA WE HAD MULTIPLE DISTRACTIONS WITH OTHER VFR ACFT AND HVY ACFT IN THE RADAR PATTERN. THE FLT INSTRUCTOR SHOULD CONTINUOUSLY BACK UP THE STUDENT AT ALL TIMES DURING FLT OPS; ESPECIALLY DURING THE BEFORE TKOF CHKS. ADVANCED TRAINING INSTRUCTORS IN MULTI-ENG ACFT SHOULD BE EXTREMELY PROFICIENT. MY LOW EXPERIENCE WITH NON MULTI-RATED PLTS CONTRIBUTED TO THE OUTCOME. THE STUDENT AND INSTRUCTOR BOTH LEARNED VERY VALUABLE LESSONS REGARDING CHKLIST DISCIPLINE AND CONSTANT VIGILANCE DURING ALL PHASES OF ACFT OP. THE STUDENT MENTIONED THAT HIS PREVIOUS TRAINING WAS BASED ON USING INST PANEL PLACARDED BEFORE LNDG CHKLISTS. THE ACFT CHKLIST INCORPORATES 'FUEL SELECTORS ON' WHERE AS THE INST PANEL PLACARD FOR THE BEFORE LNDG CHKLIST DOES NOT INCORPORATE 'FUEL SELECTORS ON.' I CRITIQUED THAT AFTER LNDG TO USE THE CHKLIST TO BACK UP. I HAVE ALSO BEEN BRIEFED BY A DESIGNATED EXAMINER ON THE PRIVILEGES OF A MULTI-ENG INSTRUCTOR WITHOUT INST PRIVILEGES. I AM NOW FULLY AWARE OF MY PRIVILEGES EVEN UNDER VFR CONDITIONS AND WILL COMPLY WITH THE PRIVILEGES AS OUTLINED IN CFR 61.195(C).