# SDR 96ZZZX5970

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N87NW](https://openairdocs.org/aircraft/N87NW), registered now
- Make and model: Beech B100
- Registry model: [Beech B100](https://openairdocs.org/model/beech-b100) (OpenAirDocs)
- Aircraft serial: BE42
- System (JASC): [2430 · DC Generating System](https://openairdocs.org/jasc/2430)
- Part: Wire
- Part number: M22759749
- Condition: Cracked
- Location: Start/Gen
- Part time: 5,675 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX5970

## Discrepancy

THE STARTER/GENERATOR 4 GAUGE WIRES THAT RUN FROM THE FIREWALL POWER CONNECTOR TO THE STARTER/GENERATOR WERE FOUND WITH CRACKED INSULATION.  THE CRACKS ARE 2 INCHES TO 4 INCHES IN LENGTH, EXPOSING THE CENTER CONDUCTOR.  ON THE LT AND RT ENGINE, THE DEFECTIVE WIRE IS LABELED P10C4.  SOME OF THE WIRING ON THIS AND OTHER B100'S IS M22759/8 OR /16.  THESE 2 SHOW NO SIGNS OF SPLITTING OR CRACKING.  ONLY THE TYPE M22759/7 HAS BEEN FOUND WITH CRACKS.  TEMP RATING ON THESE WIRE TYPES ARE PLUS 150 DEGRESS CELSIUS FOR THE /16, PLUS 200 DEGREES CELSIUS FOR THE /7 AND PLUS 260 DEGREES CELSIUS FOR THE /8.  THIS IS THE FOURTH B100 FOUND WITH THIS PROBLEM.

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