# SDR ASAA2022112640974

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 26, 2022
- Submitted: December 2, 2022
- Operation: Air carrier
- Aircraft: [N457AS](https://openairdocs.org/aircraft/N457AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36355
- Aircraft time: 32,189 hours, 10,226 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Actuator
- Part number: 1226400
- Part serial: YU0234165
- Condition: Faulted
- Location: Nr 1 Eng Vbv
- Part time: 69,758 hours, 28,310 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022112640974

## Discrepancy

DURING ASA T/C 78273000, FOUND ENG #1 SHORT TIME FAULT CODE 75-10451 THE VBV POSITION SIGNALS DISAGREE. GROUNDED - YES. REMOVED AND REPLACED #1 ENG LH VBV, OPS/LEAK CHECK GOOD REF B737-900 AMM 75-32-02.  ORIGINAL SUBMISSION DATE:  11/30/2022

---
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.