National Grid

FAA ratings: Airframe (Class 1, Class 3, Limited); Powerplant (Limited); Radio (Class 1, Class 2, Class 3); Instrument (Limited); Accessory (Limited); Limited: NDT

FAA and JAA approved repair center with a highly trained staff specializing in commercial aircraft instruments, avionics, autopilot, gyros, and accessories.

Islip Avionics, Inc. is your one-stop avionics installation and support facility located on LI Mac Arthur Airport (ISP). We handle aircraft ranging from single-engine piston powered through multi-engine corporate jets.

We've been remanufacturing and improving aircraft engines for over 57 years. We rebuild Lycoming and Continental engines.

We are a full-service avionics company. Our mission is to provide prompt, effective, professional installations, upgrades and repairs. With the help of our certified technicians, your aircraft will be flying with the...

FAA ratings: Airframe (Limited); Powerplant (Limited); Radio (Class 1, Class 2, Class 3); Instrument (Class 1, Class 2, Class 3, Class 4); Accessory (Class 1, Class 2, Class 3); Limited: NDT

FAA ratings: Accessory (Limited)

FAA ratings: Accessory (Class 1, Class 2, Class 3); Limited: Specialized services