As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 HF TRANSMISSIONS CUTTING OUT DURING POSITION REPORTS. ONLY OCCASIONALLY AND INCONSISTENTLY. PERFORMED NR 1 HF TRANSCEIVER BITE TEST. FOUND KEY INTERLOCK LIGHT NOT COMING ON ALL THE TIME. REMOVED AND REPLACED NR 1 ANTENNA COUPLER REF 23 11 61 000 801 AND 23 11 61 400 801. OPS CHECKED PER SAME STEP F. SYS CHECKS NORMAL. BITE REF 23 11 00 810 801.