# SDR BAQA089816

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2003
- Submitted: October 14, 2003
- Operation: Air carrier
- Aircraft: [N137MH](https://openairdocs.org/aircraft/N137MH), registered now
- Make and model: Urocop EC135P1
- Registry model: [Urocop EC135P1](https://openairdocs.org/model/eurocopter-deutschland-ec135p1) (OpenAirDocs)
- Aircraft serial: 0179
- Aircraft time: 536 hours
- System (JASC): [2497 · Electrical Power System Wiring](https://openairdocs.org/jasc/2497)
- Part: Master Switch
- Part number: 45023502
- Part serial: 1307
- Condition: Will Not Test
- Part time: 583 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: L
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/BAQA089816

## Discrepancy

MASTER SWITCH WOULD NOT SELF TEST OR WOULD TEST ON ITS OWN.  HARD CARD ENCLOSED.  REPLACED WITH SERVICEABLE UNIT.

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