Aviation > Optical Prisms & Larascope
Aviation Optical Prisms & Lara Scope
Optical prisms identify chips, gouges, cracks, delaminations & separation of plies.
Aqualified LLC provides on-site window acrylic inspections and aircraft window inspection qualification classes to train your A&P and NDI level II visual inspectors to properly utilize a larascope or optical prism per SNT-TC-1A or NAS-410. Available classes include ultrasonic thickness for aircraft windows.
To schedule one of the following give us a call.
- Pre-buy, pre-purchase optical prism or larascope inspection.
- Second opinion optical prism or larascope inspection.
- Learjet emergency exit, cabin windows or pilot and co-pilot windshields.
- Canadair optical prism inspection.
- Optical prism training class.
- Ultrasonic Thickness Testing and optical prism post window repair inspection.
- Windshield bird strike inspection including xray, optical prism and ultrasound.
- Acrylic polishing post inspection.
Things one must be cautious about when using an optical prism for the nondestructive inspection of aircraft windows include:
- Ensuring the aircraft window is clean enough you can eat off of before you start. If not, the likelihood of scratching the window goes up exponentially.
- Making sure the larascope or optical prism is equally spotless. If you do not take this step, the likelihood of leaving a scratch around the entire window is high.
- Use the appropriate optical prism angle and fluid.
- Ensure the hangar is in subdued lighting. It is best to perform this check at night.
- Ensure you have an adequate lighting source for the prism, a focused light is better than a flood.
- Walk the optical prism from side to side around each fastener making sure to achieve a good visual angle behind the fastener and above and below. Some aircraft manuals may require you to observe the reflection from the upper or lower surface.
- Slow down and take extra time to perform the inspection especially on window corners.