What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS THAT ENG 1 SHUTDOWN UNCOMMANDED AFTER ENG START, WHEN APU WAS STARTED AND APU BA VALVE OPEN. MAINTENANCE ACCOMPLISHED BORESCOPE INSP. OF LPT IAW AMM 72-54-00-290-005, 72-54-00-290-006, 72-54-00-290-007, 72-54-00-290-008 AND 72-54-00-210-005. NO DAMAGE FOUND. MAINTENANCE ACCOMPLISHED BORESCOPE INSPECTION OF HPT BLADES AND NOZZLES AND COMBUSTOR CHAMBER IAW CARD 26T40072003. NO DAMAGE FOUND. MAINTENANCE ACCOMPLISHED BORESCOPE INSPECTION OF LPC IAW AMM 72-21-00-290-003. NO DAMAGE FOUND.