# SDR ASAA2022090439878

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2022
- Submitted: September 12, 2022
- Operation: Air carrier
- Aircraft: [N428AS](https://openairdocs.org/aircraft/N428AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36353
- Aircraft time: 23,793 hours, 7,459 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Harness
- Part number: 3250435030
- Condition: Faulty
- Location: #2 Engine
- 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/ASAA2022090439878

## Discrepancy

WHILE PERFORMING ASA TASK CARD 78273000 ENGINE 2 FAULT CODE 75-20452 THE VBV POSITION SIGNALS DISAGREE SHORT TIME FAULT APPEARED DEFERRED PER T/C 78273000. GROUNDED - YES. VERIFIED FAULT CODE 75-20452 STILL SHOWING INTERMITTENT LAST 10 FLT LEGS. PER PREVIOUS HISTORY AND TECH SVS REQUEST REPLACED #2 ENG J10 HARNESS REF B737-900 AMM 73-21-06. ACCOMPLISHED ALL J10 HARNESS INSTALLATION TESTS, NO DEFECTS NOTED REF AMM 73-21-06.

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