What was found
AS PER MCDU ACARS-HFDR MAINT PAGE #2 HF COUPLER NOT INSTALLED, #2 HF INOP. #1 HF OPS CHECK GOOD VOICE AND DATA. GROUNDED - YES. REMOVED & REPLACED HF1 & HF2 COUPLERS ON TSR71057. OPS CHECK GOOD. B737-800 AMM 23-11-61.
- Difficulty date
- April 22, 2021
- Submitted
- May 11, 2021
- Operation
- Air carrier
- Aircraft
- N588AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35685
- Aircraft time
- 48,044 hours, 14,311 cycles
- System (JASC)
- 2397 · Communications System Wiring
- Part
- Coupler
- Part number
- 8220987004
- Part serial
- 169180
- Condition
- Inoperative
- Location
- Vertical Stab
- Part time
- 39,465 hours, 11,505 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.