# SDR ASAA2022060138565

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 2022
- Submitted: June 6, 2022
- Operation: Air carrier
- Aircraft: [N403AS](https://openairdocs.org/aircraft/N403AS), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 41730
- Aircraft time: 35,627 hours, 11,397 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Harness
- Part number: 3250434020
- Condition: Faulty
- Location: #2 Engine
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022060138565

## Discrepancy

WHILE ACCOMPLISHING ASA T/C 78273000 "INTERROGATE THE FMC CDU FOR ENGINE FAULTS", FOUND "SHORT TIME FAULT" MESSAGE 75-10452 "THE VBV POSITION SIGNALS DISAGREE" ON FLIGHT LEGS 1 AND 5, ON THE #2 ENGINE. GROUNDED - YES. REMOVED J10 HARNESS REF B737-900 AMM 73-21-06. REMOVED J9 HARNESS REF AMM 73-21-06 INSTALLED J9 HARNESS REF AMM 73-21-06-420-004-F00. INSTALLED J10 HARNESS REF AMM 73-21-06-400-802-F00. FADEC SYSTEM TEST PASSED. NO OTHER DEFECTS FOUND.

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