# SDR ASAA2018010123085

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 1, 2018
- Submitted: January 5, 2018
- Operation: Air carrier
- Aircraft: [N562AS](https://openairdocs.org/aircraft/N562AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35091
- Aircraft time: 43,385 hours, 12,916 cycles
- System (JASC): [7530 · Compressor Bleed Control](https://openairdocs.org/jasc/7530)
- Part: Cdu
- Condition: Faulted
- Location: Fmc
- Stage of operation: IN
- 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/ASAA2018010123085

## Discrepancy

WHILE ACCOMPLISHING T/C 78273000, INTERROGATE THE FMC CDU FOR FAULTS, FOUND FAULT 75-10441, VBV POSITION SIGNAL OUT OF RANGE, NR 1 ENG, LONG TERM FAULT.  ACFT GROUNDED.

---
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.