As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 HF INOP. GROUNDED - YES. PERFORMED BITE CHECK, REF AMM 23-11 TASK 801. PERFORMED BITE OF BOTH HF TRANSCEIVERS. FOUND NR 1 LOCKED. CYCLED POWER TO NR 1 SYSTEM. PERFORMED OPERATIONAL SYSTEM TEST, SYSTEM OPS CHECK NORMAL ON GROUND. GROUND VERIFICATION CHECKS GOOD.