What was found
LEFT HIGH FREQUENCY FAILED. DIVERTED INTO LHR. *S/D* DRIVER MOTOR IN LEFT HIGH FREQUENCY COUPLER FAILED. COUPLER HAD NEVER BEEN REPLACED SINCE DELIVERY ON THE AIRCRAFT IN JULY OF 1995. COUPLER REPLACED, SYSTEM TESTED NORMAL.
- Difficulty date
- March 14, 2000
- Submitted
- October 4, 2000
- Operation
- Air carrier
- Aircraft
- N770UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26925
- Aircraft time
- 19,737 hours, 3,939 cycles
- Engine
- Pwa PW4077
- System (JASC)
- 2310 · HF Communications System
- Part
- Coupler
- Part number
- 7926140001
- Part serial
- 10465
- Condition
- Failed
- Location
- Left Hf
- Component
- Drive Motor
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.