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PRESS RELEASE | Blackhawk Announces 400-Hour TBO Extension for XP140 Engine+ Upgrade

Cessna Caravan XP140 Engine+ Upgrade High Res

WACO, TX – February 27, 2018 – Blackhawk Modifications, Inc. is excited to announce a Time Between Overhaul (TBO) baseline extension from 3600 hours to 4000 hours for the Cessna Caravan XP140 Engine+ Upgrade. With this 400-hour TBO increase, the Hot Section Inspection (HSI) interval is also extended from 1800 hours to 2000 hours.

Pratt & Whitney Canada (P&WC) announced in Service Information Letter (SIL) #PT6A-259 that these TBO and HSI extensions are retroactive, meaning that all existing PT6A-140 engines operating today can take advantage of the increases. The extended TBO and HSI intervals will allow Caravan operators to save on operating expenses with less frequent maintenance needed on the engine.

“We are pleased to see this customer-first, cost-effective business decision from Pratt & Whitney that directly benefits all existing and future Blackhawk XP140-powered Caravan operators,” said Jim Allmon, President & CEO of Blackhawk Modifications. “Extending the base overhaul interval to 4000 hours provides another compelling reason to replace aging PT6A-114A engines with the latest and greatest engine technology now available to the Caravan from Blackhawk.”

In addition to the extension, TBO harmonization is also offered for operators with a mixed fleet of PT6A-114/A and PT6A-140 engines. Those with a valid P&WC-recommended TBO extension for PT6A-114/A engines may apply this recommendation to PT6A-140 engines in their fleet.

About Blackhawk Modifications
Blackhawk Modifications, Inc., founded in 1999 in Waco, Texas, is a recognized aviation leader in providing engine performance solutions to the turboprop fleet. The company has the largest installed fleet of STC twin and single-engine turboprop upgrades, making Blackhawk the largest non-OEM buyer of new Pratt & Whitney turboprop engines in the world. A worldwide network of approved dealers and service support centers complements Blackhawk’s U.S. facilities. For more information, visit

Lindsay Allmon
Marketing Coordinator
Blackhawk Modifications, Inc.
7601 Karl May Dr.
Waco, TX 76708
+1 (254) 755-6711

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