Aircraft NDT Equipment Guide
This guide summarises how eddy current testing works on aircraft and how eddy current array changes the job, for NDT supervisors and buyers. It cites Evident and FAA material.
How it works
- Eddy currents induced in conductive material change when they meet a crack or corrosion, which the instrument displays [1].
- High-frequency ECT is sensitive to small surface cracks [1].
Typical aircraft tasks
- Fastener holes, fuselage skins, wheels and engine components [1][2].
- Lap-splice crack inspection with ECA per a Boeing 757 NDT manual task [3].
Choosing an instrument
- Single, dual-frequency or ECA capability according to your NDT manual tasks [2].
- Probe compatibility with existing stock [4].
- General NDT practices: FAA AC 43.13-1B [5].
Products referenced in this guide
Evident (NDT)Aircraft NDT EquipmentRFQ
Evident NORTEC 700 Eddy Current Array Flaw Detector
Model: NORTEC 700 (N700 / N700D / N700i)
- Three models: N700 single-frequency, N700D dual-frequency + bolt-hole, N700i ECT + ECA + layer detection
- Surface/subsurface, bolt-hole, conductivity, coating thickness, weld and critical-hole inspection
- Compatible with NORTEC 600 probes, batteries and accessories
Status: Request a quote · calibration certificate on request
Related category
Aircraft NDT Equipment · All aviation guides
Frequently asked questions
Is ECA faster than a pencil probe?
Evident states up to ten times faster on lap splices [3].
Can one instrument do bolt-hole and surface work?
Yes, e.g. the NORTEC 700 N700D [2].
This guide is general information. It does not replace the aircraft maintenance manual, the operator's approved procedures or the rules of the competent civil aviation authority.
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