# SDR ABXA9701153

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 18, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N821AX](https://openairdocs.org/aircraft/N821AX), registered now
- Make and model: Doug DC-8-63
- Registry model: [Doug DC-8-63](https://openairdocs.org/model/mcdonnell-douglas-dc-8-63) (OpenAirDocs)
- Aircraft serial: 46116
- System (JASC): [7520 · Engine Cooling System](https://openairdocs.org/jasc/7520)
- Part: Control Valve
- Part number: 2623007401
- Condition: Defective
- Location: Nr 1 Gen Buss
- Stage of operation: TO
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA9701153

## Discrepancy

ON TAKEOFF ROLL FROM LAX, HAD ZNS FAULT ON NR 1 GENERATOR BUS.  ABNORMAL PROCEDURES ACCOMPLISHED.  BUS POWER RESTORED FOR APPROXIMATELY 5 MINUTES THEN ZNS FAULT OCCURRED AGAIN.  BUS SECURING PROCEDURES ACCOMPLISHED.  REPLACED JET BLOW AWAY CONTROL VALVE IAW DC8 MM 75-20-4.  OPS CHECKED GOOD.

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