Southwest Airlines - 737 When a prime contractor is building or upgrading a 737 full-flight simulator , the avionics inside the cockpit aren’t just “parts.” They’re training-critical components that must survive relentless use, stay consistent across devices, and be supportable for years—often decades. At Simtek , we’ve earned a reputation as the team primes call when they need 737 simulator avionics that hold up in the real world of flight training —where switches get cycled