As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, THE AIRCRAFT EXPERIENCED A GPS, VOR, AND ADF ERROR THAT LASTED APPROXIMATELY 7-8 MINUTES. THE COURSE LINE ON THE NR 2 GPS WAS OFF TO THE RIGHT BY APPROXIMATELY 2 MILES FROM THEIR POSITION. THE NR 1 GPS WAS INDICATING A COURSE LINE IN THE OPPOSITE DIRECTION. NEITHER COMPASS WOULD LINE UP WITH GPS. ADF AND VOR WOULD NOT ACQUIRE.