# SDR CALA2026032314793

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 2026
- Submitted: March 23, 2026
- Operation: Air carrier
- Aircraft: [N75858](https://openairdocs.org/aircraft/N75858), registered now
- Make and model: Boeing 757324
- Aircraft serial: 32817
- Aircraft time: 62,115 hours, 19,799 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Flap System
- Part number: 285N001140
- Part serial: DO1983
- Condition: Faulted
- Part time: 100,364 hours, 26,759 cycles
- Stage of operation: AP
- 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/CALA2026032314793

## Discrepancy

TE FLAP ASYM CAUTION DEBRIEF CREW, AT APPROACH FLAPS TO 1 TRAILING EDGE ASYM CAUTION LIGHT. QRH ALLOWED THEM TO L.E. ALT AND LAND WITH FLAP LOCKED UP. LANDING SPEED WAS AT ABOUT 180 KNOTS (MADE GRIPE TO CHECK FOR HOT BRAKES). ALSO PILOTS SHOWED PIC OF FLAP/SLAT ELECT. REF FIM 27-FCDIAG.  T-S TO FAULT CODE 27 51 02. CODE LEADS TO FIM 27-51 TREE 812. T-S REF FIM 27-51 TREE 812, RETURNED L.E & T.E. BACK TO NORMAL. RAN BOTH L.E. & T.E. IN NORMAL & ALT, OP CKD GOOD. SO PROBLEMS WAS IN FLIGHT DURING NORMAL OPERATIONS. ORDERED FSEU-1. REPLACED FSEU 1. REF AMM TASK 27-51-01-422-011. FSEU TEST OK REF AMM TASK 27-51-01-722-005.

---
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.