# SDR CA120217009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2012
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Robsin R44RAVENII
- Aircraft time: 4,385 hours
- Engine: Lyc IO540AE1A5
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Alternator
- Part number: ALU8521R
- Condition: Malfunctioned
- Location: Ac
- Part time: 5 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/CA120217009

## Discrepancy

(CAN) ALTERNATOR LIGHT COMES ON IN FLIGHT.  IAW PILOT OPERATING HANBOOK ALTERNATOR SWITCH CYCLED THEN LIGHT IS EXTINGUISHED.  THIS EVENT OCCURED APPROXIMATELY EVERY 7 MINUTES.   THE FLIGHT WAS TERMINATED AND MAINTENANCE REPLACED THE ALTERNATOR.

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