Finding hidden defects without damage
Non-destructive testing (NDT) finds cracks, corrosion and flaws in aircraft parts without damaging them. Common methods include visual, dye penetrant, magnetic particle, eddy current, ultrasonic and radiography.
NDT helps keep aircraft structures and engines safe.
Common NDT methods
Visual
The first and most used method, often with magnifiers and borescopes.
Dye penetrant
Shows surface cracks with coloured dye.
Eddy current
Detects cracks using electromagnetic fields.
Ultrasonic
Uses sound waves to find internal flaws.
NDT in maintenance
NDT is carried out as per approved procedures by trained and qualified staff. AME students learn the principles in Module 7.
- Approved procedures
- Qualified staff
- Records
- Follow-up repairs

Where you study inspection
Module 7 Maintenance Practices covers inspection techniques, and practical sessions build observation skills.
- Module 7
- Visual inspection practice
- Faculty guidance
- MRO exposure

Train at Redwings Aerotechnique, Bhopal
Redwings Aerotechnique is a DGCA-approved CAR-147 basic maintenance training organisation in Bhopal, Madhya Pradesh. It is part of Redwings Group, which also runs its own DGCA-approved CAR-145 maintenance, repair and overhaul organisation. This connection means students learn aircraft maintenance from people who work to real industry standards every day.
Students can choose the B1.1 (turbine aeroplanes), B1.2 (piston aeroplanes) or B2 (avionics) stream, or the dual programme AME + B.E. Classes follow the DGCA syllabus and are supported by an engine system lab, airframe system lab, electrical, radio navigation, instrument and battery workshops, a general workshop, audio-visual classrooms and a library. Teaching and counselling are available in Hindi and English.
Admission is through the Redwings Aerotechnique admission test, or by direct joining after an eligibility check. Merit scholarships are offered on the admission test score. Redwings students have recorded 100% results in DGCA module examinations across several sessions, and the first Redwings batch achieved 100% placement in airline and MRO jobs.
You are welcome to visit the Bhopal campus to see the labs and workshops, meet the faculty and talk to the admission team before you decide. Parents can join the counselling session too.
Visit or call us
- Pragyan Nursing College Campus, Abbas Nagar, Gondermau, Bypass Road, Gandhi Nagar, near R.G.P.V., Bhopal 462036
- +91 95891 97505
- +91 96855 57506
- redwingsaerotechnique@gmail.com
Why students choose Redwings
Choosing the right NDT method
No single inspection method can find every defect. Engineers choose a method based on the material, the type of defect expected, its location and the instructions in the approved data.
Visual inspection
Most defects are first found by careful visual inspection using good lighting, mirrors, magnifiers and borescopes. It is quick and effective when engineers know where to look.
Penetrant and magnetic particle
Dye penetrant inspection reveals surface cracks in non-porous materials by drawing coloured or fluorescent dye into them. Magnetic particle inspection finds surface and near-surface cracks in ferromagnetic materials such as steel.
Eddy current and ultrasonic
Eddy current inspection uses electromagnetic fields to detect cracks, especially around fastener holes, and can also measure coating thickness. Ultrasonic inspection sends sound waves into a part and detects echoes from internal flaws or delamination in composites.
Radiography
X-ray and similar methods show the internal condition of parts and structures, though they require strict safety controls.
Learning it at Redwings
Module 7 introduces NDT principles. Students also learn that NDT must be performed and interpreted by qualified personnel following approved procedures.
Questions answered
Short, clear answers to the questions students and parents ask most. Still unsure about anything? Our admission team is happy to help.
What does NDT stand for?
Non-destructive testing.
Is visual inspection a type of NDT?
Yes, and it is the most common.
Which module covers NDT basics?
Module 7.
Who performs NDT?
Trained and qualified personnel as per approved procedures.
Keep reading
Related pages and guides from Redwings.