More Than Doubles Most Overhaul Intervals

Raytheon Airline Aviation Services (RAAS), in conjunction with Pratt & Whitney Canada, says it's come up with a 9,000-hour overhaul interval for the PT6A-67D engines installed on the Beechcraft 1900D.

Most current operators have overhaul intervals of between 6,000 hours and 8,000 hours, with some able reach 12,000 hours time between overhauls (TBOs).

"This TBO extension is a significant development that has been achieved as part of our ongoing efforts to further reduce the cost of operation of the 1900D, thereby enhancing customer value," said Mike Scheidt, President of RAAS.

The 9,000-hour TBO is available via PWC service bulletin, and allows specific engines to extend their overhaul interval to 9,000 hours or 14 years. The latter is particularly important to low-utilization applications such as corporate shuttles.

Future 1900D deliveries through RAAS will be equipped to qualify for the new TBO. Existing customers can apply for a TBO extension by referring to SB14003.

Main elements include:

• Submitting an Operator Qualification Application which validates the operators’ ability to maintain the engines in accordance with published procedures
• Ensuring that each engine to be qualified meets the engine build specification defined in SB14003(or will meet specification at mid-life inspection)
• Submitting paperwork for each specific engine to be qualified
• Installing an engine exceedance monitor
• Performing Engine Condition Trend Monitoring (ECTM)

  

Complete details regarding the TBO extension are available from Raytheon Airline Aviation Services, and will also be reviewed at the Beechcraft 1900 Operators Conference, Nov. 2-4, 2004 in Wichita (KS).

FMI: www.raytheonaircraft.com