# SDR TWAA9909301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N9304C
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 49530
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Relay
- Part number: 92743642
- Condition: Worn
- Location: Radio Rack
- Stage of operation: CR
- Nature of condition: B
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA9909301

## Discrepancy

AT FL330 THERE WAS SMOKE IN THE CABIN AT PASSENGER ROW ONE.  CREW FOUND PHASE A CIRCUIT BREAKER FOR THE STANDBY RADIO RACK FAN HAD POPPED.  CREW PULLED REMAINING FAN CIRCUIT BREAKERS.  CORRECTIONS WERE DEFERRED PER MEL.  MAINTENANCE LATER REPLACED THE FAN RELAY.  CHECK-C 2-1-99 MCI.

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