A PIPER SENECA P34 DECLARED AN EMER AND LANDED DUE TO BEING UNABLE TO RESTART THE R ENG AFTER SINGLE ENG PRACTICE. RPTR ADVISES R ENG MAGNETO SWITCH FOUND IN OFF POS.

Narrative

AFTER COMPLETING SINGLE ENG PRACTICE WITH THE R ENG FEATHERED AND RETURNING TO CHD; I ATTEMPTED TO RESTART THE R ENG. I THOUGHT I HAD IT RESTARTED SINCE RPM WERE AT MAX AND MANIFOLD PRESSURE WAS 27 INCHES. THE AIRPLANE; HOWEVER; WOULD NOT CLB SO I FEATHERED THE R ENG TO GAIN ALT AND THEN ATTEMPTED TO RESTART AGAIN WITH SIMILAR RESULTS. I ASSUMED THE TURBOCHARGER WAS BAD SINCE I WAS UNABLE TO GET MORE THAN 27 INCHES OF MANIFOLD PRESSURE. AT THIS TIME I DECLARED AN EMER AND WAS GIVEN LNDG CLRNC AT CHANDLER. I CHOSE RWY 22L SINCE IT IS LONGER. I TRIED ONE MORE TIME TO RESTART THE ENG AND LANDED NORMALLY WITH PWR FROM THE L ENG ONLY. ONCE ON THE GND I REALIZED WHAT HAD HAPPENED. THE FIRST 2 RESTARTS NEVER LIT THE ENG AND I WAS GETTING AMBIENT ATMOSPHERIC PRESSURE AND THE PROP WAS ABLE TO WINDMILL AT NEAR NORMAL RPM LEADING ME TO BELIEVE THE TURBOCHARGER WAS BAD. SUBSEQUENT RUNUP CONFIRMED THIS TO BE THE CASE. THE ENG WAS CAPABLE OF REDLINE MANIFOLD PRESSURE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THE ACFT WAS A PIPER SENECA PA34-220. RPTR SAID THE FAILURE TO RESTART THE R ENG WAS THAT THE MAGNETO SWITCH WAS IN OFF POS.