# SDR UPS96221138

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 19, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N931UP](https://openairdocs.org/aircraft/N931UP), registered now
- Make and model: Boeing 727-25C
- Registry model: [Boeing 727-25C](https://openairdocs.org/model/boeing-727-25c) (OpenAirDocs)
- Aircraft serial: 19858
- System (JASC): [3416 · Altimeter, Barometric/Encoder](https://openairdocs.org/jasc/3416)
- Part: Circuit Breaker
- Condition: Tripped
- Location: Cockpit
- Stage of operation: CL
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS96221138

## Discrepancy

INSPECTION TYPE-N/A, AFTER TAKEOFF ENTIRE CREW NOTED A STRONG ODOR IN COCKPIT RESEMBLING ELECTRICAL SMOKE.   FOUND STBY ALT/AS CB POPPED, ODOR STOPPED.  DID NOT ATTEMPT TO RESET CB.     PERFORMED OPS CHK ON STBY ALT/AS IND PER MM 34-12-06 PG 501, SYS OPS CHK GOOD COULD NOT DUPLICATE.

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