# SDR UIEA2022071500765

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2022
- Submitted: July 15, 2022
- Operation: Air carrier
- Aircraft: [N409MC](https://openairdocs.org/aircraft/N409MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 30558
- Aircraft time: 91,504 hours, 14,533 cycles
- System (JASC): [3445 · Air Collision Avoidance System](https://openairdocs.org/jasc/3445)
- Part: Antenna
- Part number: 8221293033
- Part serial: 147798
- Condition: Fault Message
- Stage of operation: CR
- How discovered: V
- Nature of condition: O, S
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2022071500765

## Discrepancy

TCAS  STATUS MESSAGE (REMOVED AND REPLACED TCAS COMPUTER AND TCAS LOWER ANTENNA IAW AMM 34-45-01 AND 34-45-02 BOTH OPS CHECKED& GOOD</P>)

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