# SDR IPXA2020072458184

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2020
- Submitted: July 24, 2020
- Operation: Air carrier
- Aircraft: [N441UP](https://openairdocs.org/aircraft/N441UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 27386
- Aircraft time: 26,944 hours, 17,640 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Condition: Failed
- Location: Equip Cooling
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2020072458184

## Discrepancy

AFTER TAKE OFF, EQUIPMENT COOLING, OVERHEAT LIGHT IN THE ALTERNATE POS. DU TO FANS NR 1. FOLLOWED BY F/O LOSING FD, SWITCHED TO SOURCE C CENTER THEN EQUIPMENT COOLING SUPPLY FAN NR 2, CIRTCUT BREAKER TRIPPED STATUS MESSAGE EQUIP CLG FLOW, EQUIP CLG,  REMOVED AND REPLACED NR 2 E/E COOLING FAN IAW AMM 21-58-06-401. PERFORMED OPS CHECKED OF COOLING FAN IAW AMM 21-58-06-501. OPS CHECKED NORMAL.

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