# SDR CA040818009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2004
- Submitted: October 5, 2004
- Operation: General aviation
- Make and model: Doug DC-6B
- Registry model: [Doug DC-6B](https://openairdocs.org/model/douglas-dc-6b) (OpenAirDocs)
- Aircraft time: 33,539 hours
- Engine: Pwa CWASP
- Propeller: Hamstd 43E60
- System (JASC): [7420 · Ignition Harness (Distribution)](https://openairdocs.org/jasc/7420)
- Part: Lead
- Part number: 10878451
- Condition: Broken
- Location: Engine
- Component: Engine, R2800CB3
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA040818009

## Discrepancy

(CAN) DURING TAKEOFF FOR A PRACTICE, NR 2 ENGINE BACKFIRED. THE LOAD OF WATER WAS JETTISONED, THE ENGINE WAS SHUTDOWN AND THE PROPELLER WAS FEATHERED. THE AIRCRAFT RETURNED TO BASE. UPON INVESTIGATION BY MAINTENANCE CREW, A BROKEN LOW TENSION IGNITION LEAD WAS FOUND. THE LEAD WAS REPLACED. THE AIRCRAFT WAS RETURNED TO SERVICE.

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