# SDR UIEA2026040200119

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2026
- Submitted: April 2, 2026
- Operation: Air carrier
- Aircraft: [N485MC](https://openairdocs.org/aircraft/N485MC), registered now
- Make and model: Boeing 747-45EF
- Registry model: [Boeing 747-45EF](https://openairdocs.org/model/boeing-747-45ef) (OpenAirDocs)
- Aircraft serial: 30607
- Aircraft time: 113,132 hours, 19,950 cycles
- System (JASC): [2710 · Aileron Control System](https://openairdocs.org/jasc/2710)
- Part: Aileron Sys
- Condition: Deflection
- Stage of operation: LD
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2026040200119

## Discrepancy

UPON LANDING, ACFT REQUIRED NEARLY FULL RT AILERON DEFLECTION DURING ROLLOUT TO KEEP WINGS LEVEL.  WINDS WERE SUCH THAT LT AILERON DEFLECTION SHOULD HAVE BEEN REQUIRED. SUSPECT A POSSIBLE SPOILER OR LE FLAP ISSUE.  PERFORMED C/B RESET & SPEED BRAKE GROUND OPS CHK IAW AMM 27-62-00/501 & 57-57-02, OPS TEST NORMAL.& DUE TO REPEAT & PREVIOUS CREW DESCRIPTION OF EVENT, CURRENT CREW REQUESTS MORE T/S & A MORE DEFINITIVE FIX/FIND. LP 2123136 M2: PERFORMED GVI OF L/E FLAPS WITH FLAPS & SLATS FULLY EXTENDED, L/E, FLAP TRACK FAIRING, SLATS. NO VISUAL DEFECTS NOTED. IAW AMM 22-11-00, 27-88-00 & 27-81-00. FURTHER T/S REQ.  LP 2123137 M3-5: PERFORMED OPS CHK OF NR 6 BRAKE IAW AMM 32-44-00. BRAKE IS FREE & OPS NORMAL. FURTHER T/S REQUIRED. PERFORMED DVI OF SPOILER SURFACES TO LINKAGE. SPOILERS HAVE NO SLACK & OPS NORMAL IAW AMM 57-57-00 & 57-57-02 & 27-62-00. NO FAULTS PRESENT & CANNOT PRODUCE AN UNAIRWORTHY CONDITION. PERFORMED SEVERAL FLT CONTROL TESTS IAW AMM 27-00-01 & RON CHECKLIST T2115 (APU POWER). NO DEFECTS NOTED. OPS CHKD GOOD.

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