# SDR IPXA2024122717575

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 27, 2024
- Submitted: December 27, 2024
- Operation: Air carrier
- Aircraft: [N454UP](https://openairdocs.org/aircraft/N454UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25475
- Aircraft time: 41,849 hours, 21,568 cycles
- System (JASC): [2780 · Leading Edge Slat Control System](https://openairdocs.org/jasc/2780)
- Part: Slat System
- Condition: Faulted
- Stage of operation: CR
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2024122717575

## Discrepancy

ATB, LE SLAT DISAGREE AFTER FLAPS UP SELECTED DURING CLIMB PER FIM TASK 27-81 FAULT TREE 803, PERFORMED BITE TEST OF FSEU. €ŒALT ARM DISAGREE€? AND €ŒSLAT SYS FAULT€? WERE ONLY MESSAGES PRESENT. PER CHART 101 IN FIM 27-51 FAULT TREE 804, PERFORMED BLOCKS 26-28, OPS CHECKS NORMAL. SELECTED LE AND TE ALT SYS, SLATS RETRACTED AND ASSOCIATED MESSAGE CLEARED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.