# SDR FDEA202203220643

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 22, 2022
- Submitted: March 24, 2022
- Operation: Air carrier
- Aircraft: [N927FD](https://openairdocs.org/aircraft/N927FD), registered now
- Make and model: Boeing 757-200 SERIES
- Registry model: [Boeing 757-200 SERIES](https://openairdocs.org/model/boeing-757-200-series) (OpenAirDocs)
- Aircraft serial: 27220
- Aircraft time: 71,107 hours, 27,602 cycles
- System (JASC): [3441 · Inertial Guidance System](https://openairdocs.org/jasc/3441)
- Part: None
- Condition: None
- Location: N/A
- Stage of operation: CL
- How discovered: V
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202203220643

## Discrepancy

RADAR INOP, DISPLAYS SPOKE RETURNS.              REASON CODE : PREMATURE REMOVAL/INSTALLATION  OFF  MPN: 066-50008-0406                      POS: ONL  SRL: 10790                     TAG NBR: 8752F2  ON  MPN: 066-50008-0406       CPN: 3414883  SRL: 11890                     TAG NBR: H48655  REASON CODE : PREMATURE REMOVAL/INSTALLATION  OFF  MPN: 2041444-0405                        POS: ONL  SRL: 1207                      TAG NBR: 8528G8  ON  MPN: 2041444-0401         CPN: 3414781  SRL: 6351                      TAG NBR: 6F4563     FACT 22MAR22 14:42   BNA U  ACCOMPLISHED BITE TEST OF RADAR TRANSCEIVER PER FIM  34-43/809 .INDICATED TRANSCEIVER FAULT. R&R'D RADAR  TRANCEIVER PER AMM 34-43-01-4. AS A PRECUATION  R&R'D RADAR ANTENNA DRIVE UNIT AND ANTENNA ARRAY  PER AMM 34-43-05-4-4. ALL OPS CHECKS GOOD PER AMM  34-43-00-5-99, WITH NO FAULTS INDICATED. COMPARED  DISPLAY TO ANOTHER A/C WITH SAME RESULTS. A/C OK  FOR SERVICE.

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