Service difficulty report · Aileron Sys · Boeing 74745EF

Difficulty date
April 2, 2026
Submitted
April 2, 2026
Operation
Air carrier
Aircraft
N485MC
Make and model
Boeing 74745EF
Aircraft serial
30607
Aircraft time
113,132 hours, 19,950 cycles
Part
Aileron Sys
Condition
Deflection
Stage of operation
LD
How discovered
O
Nature of condition
F
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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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