# SDR ASAA2020040332600

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2020
- Submitted: April 6, 2020
- Operation: Air carrier
- Aircraft: [N428AS](https://openairdocs.org/aircraft/N428AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36353
- Aircraft time: 16,365 hours, 5,183 cycles
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: IN
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020040332600

## Discrepancy

WHILE PERFORMING TASKCARD 78273000 FOUND MSG #2 ENG NBR 75-30452 VBV POSITION SIGNAL DISAGREE. REQUIRES PLT DEFERRAL PER TASK CARD 78273000 OR DEFECT CORRECTED. GROUNDED - YES. PERFORMED B737-900 FIM 75-32 TASK 803 FOR FAULT CODE 75-30452 VBV POSITION SIGNALS DISAGREE NO FAULTS FOUND. PERFORMED EEC BITE PROCEDURE PER FIM 73-00 TASK 801 NO FAULTS FOUND. PERFORMED GOOD ACTUATORS TEST 12 PER B737-900 AMM 71-00-00-700-807. NO FAULTS FOUND. PERFORMED EEC TEST WITH NO FAULTS FOUND PER AMM 73-21-00-700-804. THIS CLEARS THIS PLT.

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