# SDR IPXA2023111478845

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 14, 2023
- Submitted: November 14, 2023
- Operation: Air carrier
- Aircraft: [N470UP](https://openairdocs.org/aircraft/N470UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25486
- Aircraft time: 33,482 hours, 20,090 cycles
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2023111478845

## Discrepancy

AT CRUISE L PFD BLANKED. PFD TRANSFER SWITCH DID WORK TO REGAIN CAPTAINS DISPLAY, BUT WITH F/O€™S NOW BLANK AS A RESULT. REMOVED AND REPLACED LEFT GGU PER MM31-65-02 CW SOFTWARE CHECK. SYSTEM OPS CHECK

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