Service difficulty report · Transceiver · Boeing 737990ER
FAA SDR system
- Difficulty date
- January 4, 2022
- Submitted
- January 7, 2022
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44108
- Aircraft time
- 22,905 hours, 7,114 cycles
- Part
- Transceiver
- Part number
- 8220990004
- Part serial
- 18RV5H
- Condition
- Failed
- Location
- Nr 1 Hf Comms
- Part time
- 30,876 hours, 9,858 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#1 HF RADIO FAIL INDICATED. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 23-11 TASK 802. INITIAL EVALUATION PASSES. #1 HF INTERMITTENTLY SLOW TO TUNE WITH INTERMITTENT FAIL. REMOVED & REPLACED #1 HF TRANSCEIVER. REF B737-900 AMM 23-11-21. ALL TESTS PASS.