# SDR AMCR201001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2010
- Submitted: March 10, 2010
- Operation: General aviation
- Filed by: [Alticor Inc, repair station AMCR163C](https://openairdocs.org/faa-repair-station/AMCR163C/alticor-inc.md) (OpenAirDocs)
- Aircraft: [N254DV](https://openairdocs.org/aircraft/N254DV), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20262
- Aircraft time: 142 hours, 110 cycles
- System (JASC): [3100 · Indicating/Recording System](https://openairdocs.org/jasc/3100)
- Part: Rotary Switch
- Part number: 36006203
- Part serial: DC0838
- Condition: Failed
- Part time: 142 hours, 110 cycles
- Component: System Test Pnl, Bombdr
- Component part number: 100532601802500
- Stage of operation: UK
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AMCR201001

## Discrepancy

THE SYS TEST PANEL ROTARY SWITCH STARTED WORKING INTERMITTENTLY, ESPECIALLY UPON PRESSING THE KNOB FOR TEST. RECEIVED A REPLACEMENT PANEL ASSY UNDER WARRANTY AND THAT UNIT WOULD NOT TEST PROPERLY UNLESS THE KNOB WAS WIGGLED A CERTAIN WAY WHILE DEPRESSED. THE THIRD UNIT RECEIVED WAS IN A CONDITION IN WHICH THE KNOB WOULD NOT PHYSICALLY PRESS DOWN. THE FOURTH UNIT RECEIVED WORKED OK. THE MFG TOLD US NOT TO RETURN THE NEW DEFECTIVE UNITS. THE ROTARY SWITCH ON THE PANEL, AND THE SN THAT FAILED ARE DC0838, DC0826, DC0910.

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