Module-level detailed inspection: what changes when the engine is on a stand
On wing, the inspector sees the engine through ports. On a stand, with modules separated or exposed, the inspector sees the parts directly. A module-level detailed inspection uses that access to answer questions a borescope cannot.
JTech Turbines inspection team · Published November 1, 2026 · Updated November 1, 2026
When it happens
At a shop visit, before and after work; at a module exchange, when a fan, core or LPT module is swapped; at a pre-purchase on an engine already off wing; and after an event when the manufacturer asks for a closer look at specific hardware.
What changes
- Access. Blades, vanes, liners and seals can be examined under proper lighting with magnifiers and measured with gauges, not estimated through a probe.
- Scope. Case flanges, bearings, seals, mounts and module interfaces that are invisible on wing.
- Records. Module data plates and LLP part and serial numbers can be read and photographed directly, which is why module-level inspections anchor the records audit.
- Methods. Where a borescope finding needs confirmation, the surface NDT methods — penetrant, eddy current — become available.
What the report records
The module identity and data plates, each inspected item with its result, measurements against the manual limits, photographs, the methods used and the inspector's signature — in the same status format as an on-wing report so the engine's history stays readable.
FAQ
- Is a module-level inspection a shop visit?
- No; it can happen at a shop visit, but it is an inspection, not a workscope.
- Who performs it?
- A technician or inspector authorised for the engine type, often at the shop and witnessed by the owner's representative.
- Can InspectView be used off wing?
- Yes; photos and measurements are filed by module and stage the same way, and the report is signed the same way.
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Need the inspection, not just the article?
JTech Turbines performs borescope, GVI and QEC inspections on site, with reports drafted in InspectView and signed by the inspector. Email jruiz@jtechturbines.com and joel@jtechturbines.com, call +1 (786) 340-4404, or request an inspection at /services#request.