# SDR ABXA9701040

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N847AX
- Make and model: Doug DC-8-61
- Registry model: [Doug DC-8-61](https://openairdocs.org/model/douglas-dc-8-61) (OpenAirDocs)
- Aircraft serial: 46031
- Engine: Pwa JT3D3B
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Part number: 31229000
- Condition: Burned
- Location: Nr 3 Engine
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: E, F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA9701040

## Discrepancy

DURING CRUISE, FIRE WARNING ON NR 3 ENGINE.  SECURED NR 3 ENGINE AT 0552Z, DISCHARGED ONE BOTTLE.  WINDMILLING OIL PRESSURE 25 PSI, N1 25 PERCENT, N2 40 PERCENT.  *S/D*  INSPECTION OF THE GENERATOR INDICATES THAT FAILURE OF ONE OR MORE OF THE FOLLOWING COMPONENTS: INPUT DRIVE BEARING, ROTOR WINDING, OR COOLING FAN, DAMAGED THE CSD/GENERATOR UNIT CAUSING OVER SPEED, OVERHEATED CONDITION, LOSS OF OIL, AND RESULTANT FIRE AND FIRE WARNING.  ENGINE WAS REPLACED ON AIRCRAFT AND COWLING REPAIRS MADE.

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