# SDR 9514099102

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N92S](https://openairdocs.org/aircraft/N92S), registered now
- Make and model: Doug DC-9-15
- Registry model: [Doug DC-9-15](https://openairdocs.org/model/mcdonnell-douglas-dc-9-15) (OpenAirDocs)
- Aircraft serial: 47064
- System (JASC): [2460 · DC Power Distribution System](https://openairdocs.org/jasc/2460)
- Part: Transfer Relay
- Part number: 92057802
- Condition: Malfunctioned
- Location: Dc Emergency Pwr
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9514099102

## Discrepancy

AFTER TAKEOFF, BOTH A AND B PHASE FUEL BOOST PUMP CIRCUIT BREAKERS POPPED, IN CONJUNCTION WITH LOSS OF SEVERAL AIRCRAFT COMPONENTS INCLUDING COMMUNICATIONS.  FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT.  REPLACED DC CROSSTIE RELAY (R2-27) AND NR 1 AND NR 2 TRANSFORMER RECTIFIERS.  ALSO, SWAPPED GENERATOR CONTROL PANELS, ALL WITH NO HELP.  REPLACED DC EMERGENCY POWER TRANSFER RELAY (R2-19).  SYSTEM CHECKED OK AND AIRCRAFT RETRUNED TO SERVICE.

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