What was found
FLIGHT 811, PHL-CUN: AFTER TAKEOFF, CREW REPORTED LOSS OF L-NAV. RETURNED TO FIELD. MAINTENANCE REPLACED THE VOR/DME CONTROL PANEL. NO FURTHER FAULTS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 811, PHL-CUN: AFTER TAKEOFF, CREW REPORTED LOSS OF L-NAV. RETURNED TO FIELD. MAINTENANCE REPLACED THE VOR/DME CONTROL PANEL. NO FURTHER FAULTS.