# SDR DXTA2026011906578

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2026
- Submitted: January 19, 2026
- Operation: Air carrier
- Aircraft: [N449QS](https://openairdocs.org/aircraft/N449QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500659
- Aircraft time: 3,907 hours, 3,034 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Flap System
- Condition: Faulted
- Stage of operation: DE
- 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/DXTA2026011906578

## Discrepancy

WHEN SELECTING FLAPS 2,  RECEIVED A FLAP FAIL CAS. FLAPS STOPPED JUST BEYOND THE NR 1 POSITION. RAN QRH, &  UNSUCCESSFUL WHEN CYCLING FLAPS.   PERFORMED SEVERAL OPS CHKS FOR FLAP SYS USING  AMM 27-50-00-710 &  SYSTEM NEVER FAIL ON ANY STAGE OF OPS CHECKS. CHECKED OK.  GAINED ACCESS THRU TO CMC VIEWER & NO ACTIVE FAULTS PRESENT, WENT THRU THE FAULT MESSAGES PER DAY ON JAN-17-26 & FOUND 743 I FCS FLAP LEVER DISAGREE FAULT CODE 27523800 FIM 27-53-00-810-818-A, RELATED CAS MESSAGE NONE CURRENT STATUS INACTIVE & 492 FCS FCE I, PWR DRIVE UNIT FAIL FAULT CODE 27522400 FIM 27-53-00-810-812-A RELATED CAS MESSAGE FLAP FAIL CURRENT STATUS INACTIVE. FOLLOWING THE T/S RECOMMENDATIONS FROM EMB SUPPORT: ISOLATION MANUAL 27-53-00-810-812-A THE FIRST STEPS REQUIRED TO VERIFY FAULT HAS BEEN REMOVED FROM ACTIVE FAULT AND NO FAULT PRESENT ON CMC PAGE. ALSO PERFORMED A VISUAL INSPECTION OF ALL FLAP MOTOR ACTUATORS AND LINKS WITH NO DEFECTS NOTED. MCC AGREE WITH T/S PERFORMED. PERFORMED ANOTHER SET.OF FLAP SYSTEM OPS CHECK IAW  AMM 27-50-00-710 & SYSTEM WORK PROPERLY AT THIS TIME

---
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.