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The basic Time Between Overhaul (TBO) and Hot Section Inspection (HSI)
interval is published in the appropriate Service Bulletin for each PT6A
engine model. Under extreme conditions, maintenance action prior to the
recommended overhaul life may be necessary.
The TBO interval depends on the specified operation of the engine.
The interval can be escalated incrementally with the approval of your
airworthiness authority, using an “on-condition” or a sampling program.
The current TBO escalation is limited at 8,000 hours for single-engine
aircraft and 10,000 hr to 12,500 hr, for twin-engine aircraft, depending on
the application.
TBO escalation recommendations take into account the average effect
of flight duration, time at a given power level, climate, environment,
maintenance practices, utilization and engine hardware standard.
overhAul
The basic Time Between Overhaul (TBO) and Hot Section Inspection (HSI)
interval is published in the appropriate Service Bulletin for each PT6A
engine model. Under extreme conditions, maintenance action prior to the
recommended overhaul life may be necessary.
The TBO interval depends on the specified operation of the engine.
The interval can be escalated incrementally with the approval of your
airworthiness authority, using an “on-condition” or a sampling program.
The current TBO escalation is limited at 8,000 hours for single-engine
aircraft and 10,000 hr to 12,500 hr, for twin-engine aircraft, depending on
the application.
TBO escalation recommendations take into account the average effect
of flight duration, time at a given power level, climate, environment,
maintenance practices, utilization and engine hardware standard.
overhAul
Summary of Contents for PT6A Turboprop
Page 1: ...Key NEW OWNER WISDOm YOUR PT6A turboprop ...
Page 5: ......
