What was found
SHORTLY AFTER TAKEOFF OUT OF BKL AIRCRAFT LOST ALL AVIONICS, RETURNED TO BKL. REMOVED AND REPLACED DEFECTIVE AVIONICS MASTER SWITCH, OPS CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SHORTLY AFTER TAKEOFF OUT OF BKL AIRCRAFT LOST ALL AVIONICS, RETURNED TO BKL. REMOVED AND REPLACED DEFECTIVE AVIONICS MASTER SWITCH, OPS CHECKED GOOD.