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What is turbine engine overhaul?
Aircraft gas turbine engine overhaul technicians perform overhaul, maintenance and repair work on gas turbine engines. They disassemble, inspect, clean, repair and reassemble the engines using engine-specific tooling.
How often do you have to overhaul a jet engine?
Mandated Times Between Overhauls (TBOs) vary based on different engine categories and types. Older and smaller jet engines typically have TBOs of 5,000 hours at the most. More modern engines have about 6,000 hours or more.
What is the hot section of a turbine engine?
WHICH PARTS ARE INVOLVED? A hot section inspection (HSI) involves examining the condition of a number of key engine parts, including the turbine blades, the combustion chamber, the stators, the vane rings, the compressor turbine disk and the shroud segments. A hot section inspection is performed on a PT6 engine.
What are the main steps of the turbine engine overhaul?
“Receiving, preliminary inspection, teardown, cleaning, detailed inspection, quoting, re-work, assembly, testing, quality assurance and finally, shipping.”
When does an engine need to be overhauled?
In the general aviation world, a very common usage of “overhaul” is in the context of piston engines, which have a Time Between Overhaul (TBO or TBOH) set by the manufacturer. Once an engine reaches that number of hours, it needs to be overhauled.
What happens when a turbo-prop engine is exceeded?
If the transient limits are exceeded, then you (or more likely a mechanic on your behalf) would need to refer to the maintenance manual for instructions. Depending on the severity of the exceedance, it can be anything from simply logging it in the engine logbooks to a complete tear down and overhaul of the engine.
When does an aircraft have to be rebuilt?
In these cases the rebuild is not an overhaul but a restoration. The hours or cycles have to be tracked since new since once it hits the life limit it is scrap even if it was rebuilt (restored) the previous month (which an airline won’t let happen).
What was the new rule for life limited aircraft parts?
The new regulation, issued Jan. 15, 2002, is 14 CFR Part 43.10 titled “Disposition of life-limited aircraft parts.” The rule comes as a result of several years work by the FAA in the area of Parts and Suspected Unapproved Parts.