As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF RADIO RIGHT WON'T TUNE. NEED HF ANTENNA COUPLER. REPLACED RT HF COMM COUPLER, MAT BITE TEST OK. DUE TO NR 2 HF COUPLER REPLACEMENT, NEED TO ACCOMPLISH SYSTEM OPS CHECK OUTSIDE THE HANGER. NR 2 HF SYS FAILS OPS CK. DF0928 FOR UPDATE. REPLACED RT HF COMM COUPLER PER MM, CHECKS OKAY.