# SDR CALA2026041315314

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 11, 2026
- Submitted: April 13, 2026
- Operation: Air carrier
- Aircraft: [N57863](https://openairdocs.org/aircraft/N57863), registered now
- Make and model: Boeing 757-33N
- Registry model: [Boeing 757-33N](https://openairdocs.org/model/boeing-757-33n) (OpenAirDocs)
- Aircraft serial: 32587
- Aircraft time: 73,826 hours, 22,493 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Circuit Breaker
- Condition: Tripped
- Stage of operation: TX
- How discovered: O
- Nature of condition: S
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026041315314

## Discrepancy

DURING LT ENG START,  LT GEN FAILED. RESET  SUCCESSFUL. LT RECIRC FAN INOP.   FOUND LT RECIRC FAN CB ON P70 PANEL TRIPPED.  RESET CB, LT RECIRC FAN FUNCTIONS NORMALLY. RAN BOTH ENGINES AND HAD NORMAL START AND POWER TRANSFER OPERATIONS. NO HISTORY FOR L RECIRC FAN CB TRIP. OK TO CONTINUE.

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