SDR UPS01436395

Service difficulty report · Aileron · Boeing 747121

Difficulty date: July 25, 2001
Submitted: July 27, 2001
Operation: Air carrier
Aircraft: N691UP
Make and model: Boeing 747121
Aircraft serial: 19641
System (JASC): 2710 · Aileron Control System
Part: Aileron
Condition: Malfunctioned
Location: Wings
Stage of operation: NR
How discovered: O
Nature of condition: F
Precautionary procedure: A

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

What was found

INSPECTION TYPE:N/A PRE-FLT- AILERONS BND WHEN YOKE IS TURNED LEFT. BINDING OCCURS APPR E LEFT LIMIT FURTHER DEFLECTION OF THE LEFT SPOILER IS IND ON THE CP I WHEN AILERONS ARE FORCED PAST THE BINDING POINT. *S/D* PERFORMED AILERON CONTROL SYSTEM TROUBLESHOOTING STEPS 1-3 WITH NO DEFECTS OR BINDING NOTED. AILERON CONTROL SYSTEM OPS CHKS GOOD AS PER MM 27-11-00 OK FOR SERVICE