# SDR 21200003002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 2005
- Submitted: February 4, 2005
- Operation: Air carrier
- Aircraft: [N4127R](https://openairdocs.org/aircraft/N4127R), registered now
- Make and model: Piper PA-32-300
- Registry model: [Piper PA-32-300](https://openairdocs.org/model/piper-pa-32-300) (OpenAirDocs)
- Aircraft serial: 3240455
- Aircraft time: 5,804 hours
- Engine: Lyc IO540K1A5
- Engine time: 575 hours
- Propeller: Hartzl HCC2YK2
- System (JASC): [2434 · DC Generator-Alternator](https://openairdocs.org/jasc/2434)
- Part: Alternator
- Part number: 3656624R
- Part serial: E111332
- Condition: Fouled
- Location: Engine
- Part time: 45 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/21200003002

## Discrepancy

ON APPROACH, ELECTRICAL POWER LOSS.  AFTER CONTACT WITHTOWER, COMM 1 RADIO TURNED OFF, WITHIN 3-5 SEC C/B FOR ALTERNATOR OUTPUT TRIPPED & INSTRUMENT PANEL LIGHTS DIMMED, AMP GAUGE SHOW DISCHARGE OF BATTERY.  TURNED OFF NON ESSENTIAL ELECTRICAL EQUIPMENT & RESET C/B & C/B POPPED BACK OUT.  LT C/B OUT & ATTEMPTED RECYCLE COMM 1, TRANSMIT BUT NOT RECEIVE, LOW BATTERY.  NO ENG DIFFICULTIES.  AFTER LANDING INSPECTED FUSES, FOUND OUTER MARKER BEACON FUSE BLOWN.  EXCESSIVE DIRT FOUND ON ALTERNATOR & SURROUNDING CONNECTIONS.  BUILD UP CAUSED SHORT IN CONNECTIONS TO ALTERNATOR & CONNECTED COMPONENTS.  ALTERNATOR & ENG COMPT CHECKED & CLEANED.  BATTERY CHARGED, FUSE REPLACED, RUNUP CHECK & NO ABNORM ELECTRICAL SYSTEM.

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