# SDR P5CA0300906

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 3, 2003
- Submitted: August 11, 2003
- Operation: Air carrier
- Aircraft: N923FT
- Make and model: Boeing 747-2U3B
- Registry model: [Boeing 747-2U3B](https://openairdocs.org/model/boeing-747-2u3b) (OpenAirDocs)
- Aircraft serial: 22769
- Aircraft time: 75,494 hours, 18,590 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Cdu
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA0300906

## Discrepancy

NR 1 INS DISPLAY WENT BLANK AFTER PUSH BACK WARNING LIGHT CAME ON AND ADI TUMBLED.  SWAPPED NR 1 CDU AND NR 3 CDU OPERATIONAL CHECK NORMAL PER MM 34-41-02.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.