# SDR UIEA2022012100072

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2022
- Submitted: January 25, 2022
- Operation: Air carrier
- Aircraft: [N473MC](https://openairdocs.org/aircraft/N473MC), registered now
- Make and model: Boeing 747-45E
- Registry model: [Boeing 747-45E](https://openairdocs.org/model/boeing-747-45e) (OpenAirDocs)
- Aircraft serial: 27174
- Aircraft time: 110,399 hours
- System (JASC): [2315 · Communications (chapter)](https://openairdocs.org/jasc/2315)
- Part: None
- Part number: 6225272120
- Part serial: 3037
- Condition: None
- Stage of operation: CR
- How discovered: O
- Nature of condition: G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2022012100072

## Discrepancy

DISCREPANCY 1. LH HF FAILED IN FLIGHT. DISCREPANCY 2. SATCOM MESSAGE AFTER TAKE OFF. UNABLE TO CROSS PACIFIC OCEAN WITH BOTH INOP.(<P ><SPAN>DISCREPANCY 1. REMOVED AND REPLACD LH HF TRANSCEIVER IAW AMM 23-11-05.  DISCREPANCY 2.  REMOVED AND REPLACED "THUMB LOCK" ON BEAM STEERING UNIT TRAY IAW AMM 20-11-22.</SPAN></P> / <P> </P>)

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