If you wish to discuss corrosion problems with older aircraft (aged, as you put it), then you must include the FAA's program to deal with any possible problems - "aging aircraft inspections". There are many methods of inspecting aircraft structures, some of which include X-Ray methods - perhaps you would like to check some of them out:
Acoustic Emission,Compton Backscatter (utilizing weak x-rays - allows dimensional measurement and material identification of sub-surface layers), Diffracto Sight (an NDI technique utilizing optical surface reflection to detect
impact damage and lap joint corrosion), Eddy Current, Lamb Wave Ultrasonics,Magnetic Particle Inspection (Technique utilizing magnetic particles to locate surface and subsurface
defects), Microwave Moisture Detection, Non Destructive Evaluation (NDE) (Ultrasonic, radiographic, thermographic, electromagnetic and optic methods are employed to probe interior
microstructure and characterize subsurface features),
Radiographic Inspection, Radioscopy (Non destructive inspection technology that utilizes X-Ray to inspect thick aircraft
structure), Thermography, (for the early detection of hidden
corrosion within and outside the shadow of an installed aircraft wing skin fasteners), Ultrasonic Inspection, among others.
Please get up to speed on what Baltia is doing - it has been well over a year since Baltia purchased N706BL from Kalitta Air, which just underwent much more than a "C" Check, short of a "D" Check which was not required. The Pakistani aircraft you are referring to was mothballed in favor of the Delta/Northwest aircraft and its sister ship that Baltia has an option on from Kalitta. Fact.
I certainly do not wish to second-guess Baltia's intentions on the future of these aircraft. They have recently acquired the largest inventory of spare parts from another 747-200 operator, and that may affect their future decisions. Time will tell.
Sorry that you feel attacked. You posted incorrect information and put forth language that was negative, based up faulty assumptions. This forum is designed to allow us to vet everyone's posts, and hopefully we do so in a respectful manner.
Your contributions are welcome, and I wish you well, as I do all of us who have invested in Baltia.
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