What was found
HF NR 2 RT UNABLE TO TUNE & COMMUNICATE ON LOWER FREQUENCIES. ABLE TO TUNE 11282 SUCCESSFULLY. REPLACED NR 2 RT HF COUPLER IAW AMM 23 11 01. CONTACTED SFO RADIO SIGNAL STRENGTH 5 BY 5 ON LOW FREQUENCIES. OPS NORMAL.
- Difficulty date
- February 14, 2012
- Submitted
- February 15, 2012
- Operation
- Air carrier
- Aircraft
- N583HA
- Make and model
- Boeing 76733A
- Aircraft serial
- 25531
- Aircraft time
- 85,726 hours, 15,394 cycles
- System (JASC)
- 2397 · Communications System Wiring
- Part
- Coupler
- Part number
- 2305818
- Part serial
- 601135
- Condition
- Failed
- Location
- Hf Radior
- Part time
- 93,800 hours, 17,452 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.