# SDR SWIA2026071176618

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2026
- Submitted: July 14, 2026
- Operation: Air carrier
- Aircraft: [N732SY](https://openairdocs.org/aircraft/N732SY), registered now
- Make and model: Emb ERJ 170-100 LR
- Registry model: [EMB ERJ 170-100 LR](https://openairdocs.org/model/embraer-erj-170-100-lr) (OpenAirDocs)
- Aircraft serial: 17000011
- Aircraft time: 34,441 hours, 32,220 cycles
- System (JASC): [2780 · Leading Edge Slat Control System](https://openairdocs.org/jasc/2780)
- Part: Slat System
- Condition: Faulted
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA2026071176618

## Discrepancy

SLAT FAIL WHILE RETRACTING FROM 1 TO UP IN THE INITIAL CLIMB. RAN QRH AND COULD NOT GET THE MESSAGE TO EXTINGUISH.  FLIGHT 5481.  REFERENCE AML 1936853.  FOR LT SLAT POSITION SENSOR.  REFERENCE AML 1936854  FOR RT SLAT POSITION SENSOR INTERROGATED CMC FOUND FAULT CODE 27811021ACE, CODE REFERS TO FIM 27-80-00-810-802-A & 27-81-00-810-802-ATROUBLESHOT PER FIM 27-81-00-810-802-A , SLAT PDU IDENTIFIED AS RT WING JAMMED, FOUND NR 2 AND NR 4 SLAT ACTUATORS TORQUE LIMITERS TRIPPED, PERFORMED SLAT PDU BRAKE RELEASE AND WAS THEN ABLE TO LATERALLY MOVE THE TORQUE TUBE AND THE TRIP RESET.  PERFORMED OPS CHECK OF THE SLATS SYSTEM IAW AMM 27-80-00 OPS CHECKED GOOD ACTUATORS DID NOT TRIP AGAIN, IAW THE FIM THIS IS FOUND TO BE A TRANSITORY CONDITION OF SLAT ACTUATORS, HOWEVER DUE TO CODE REFERRING TO ANOTHER FIM CONTINUED TO TROUBLESHOOT IAW FIM 27-80-00-810-802-A.  FOUND BOTH LT AND RT RESOLVER ANGLES AT 26 DEGREES, WHICH IS FAILURE OF BOTH SLAT POSITION SENSORS AND REQUIRES REPLACEMENT. FWD DISCREPANCIES FOR REPLACEMENT OF SENSORS. SLATS CONTINUED TO OPS CHECK GOOD AFTER POSITIONS SENSOR REPLACEMENTS, REF AMM 27-80-00, NO FURTHER DEFE

---
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.