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Borescope inspection tool

Green 123

Aerospace
Feb 19, 2024
37
Would you mind advising proper borescope model for inspecting Tay650&CFM56&CF6-80C&Lycoming ALF502/LF507 engine models? how is FOV(Field Of View) related to the diameter of the remote visual inspection probe? Why do TCH(type certificate holders) still advise rigid borescope instead of flexible probe in pertinent maintenance manual?
 
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FOV has to do with the optics of the lens in the scope.

TCH probably advise rigid scopes because they provide a more reliable image. Call P&W, RR, and/or GE/CFM and ask them.
 
With a rigid scope you can index the depth of insertion, pitch, roll and yaw against a tangible feature on the outside of whatever you're inspecting. I.e. you can know exactly where the lens is.
 
FOV has to do with the optics of the lens in the scope.

TCH probably advise rigid scopes because they provide a more reliable image. Call P&W, RR, and/or GE/CFM and ask them.
Aforesaid type certificate holders came up with obsolete tools in corresponding maintenance manual.
 
The Olympus IPLEX NX is a solid choice for these engines, with excellent resolution and durability. FoV relates to probe diameter as larger probes can integrate wider lenses, offering a broader view but may not fit smaller inspection ports.
 
The Olympus IPLEX NX is a solid choice for these engines, with excellent resolution and durability. FoV relates to probe diameter as larger probes can integrate wider lenses, offering a broader view but may not fit smaller inspection ports.
Much obliged.....
 
With a rigid scope you can index the depth of insertion, pitch, roll and yaw against a tangible feature on the outside of whatever you're inspecting. I.e. you can know exactly where the lens is.
Much obliged...
 
Suggest You review AD's and SB's for Your engine and narrow-down either the recommended borescopes... available or obsolete... and/or define the borescope functional requirements... and have conversations with borescope OEMs regarding your application/requirements.

IF your requirement and the old/obsolete borescope is a 'known issue', then reputable borescope OEMs should be able to assist... and if anything describe alternatives to the 'obsolete borescopes called-out in old tech. OR, recommend contacting 'Brand X' who made the original equipment... for their 'equivalents'.

Then, when the requirements are validated and available equipment is proposed... ask for an on-engine inspection/demonstration for validation... preferably with Your designated engine OEM tech-representative 'leaning-in over everyone's shoulder'... during the demonstration.
 

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