PT6T-9 clutch inspection interval extension to reduce related maintenance costs
from Pratt & Whitney Canada Corp. via Vertical
Pratt & Whitney Canada Corp. (P&WC) has increased the clutch inspection interval for its PT6T-9 engine which powers the Bell 412EPI helicopter. The 60 percent increase will see the interval move from 1,250 hours to 2,000 hours, meaning that a clutch inspection is required only once during the engine's gearbox TBO of 4,000 hours. Previously, three inspections were required during the TBO period. "The extension of the clutch inspection interval means significant savings for PT6T-9 operators," said Irene Makris, vice president, Marketing, P&WC.
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