# SDR 0623200604

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 23, 2006
- Submitted: June 23, 2006
- Operation: Air carrier
- Aircraft: N262FC
- Make and model: Boeing 747-200B
- Registry model: [Boeing 747-200B](https://openairdocs.org/model/boeing-747-200b) (OpenAirDocs)
- Aircraft serial: 22304
- Aircraft time: 83,900 hours, 18,660 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Control Wheel
- Condition: Binding
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/0623200604

## Discrepancy

ON CLIMBOUT BEFORE LEVEL FLT WITH FLAPS EXTENDED CONTROL WHEEL BINDING & ABRUPT YAWING MOTIONS WITH MINOR VIBRATION & RUMBLE EXPERIENCED AT FLAPS 10.5 DEGREE WITH AP ENGAGED.  BINDING WAS STILL PRESENT WITH MINIMUM YAWING MOTION ON APPROACH (MIA).  BINDING & YAW MOTIONS STILL PRESENT WITH FLAPS AT 25 & 30 DEGREES.  RETURN TO MIA WITHOUT INCIDENT.  DURING TESTING OF AILERON SYSTEM, FOUND BOTH THE COPILOTS AND PILOT DRUM TO HAVE WORN BEARINGS. REPLACED BOTH UNITS IAW 27-11-04/05.  ACCOMPLISHED AILERON AND AILERON TRIM SYSTEM RIG PER MM, PERFORM GROUND FUNCTIONAL TEST, FOUND SATISFACTORY, AIRCRAFT RETURNED TO SERVICE FOR NON-REV. FLIGHT.  ACCOMPLISH FLIGHT, NO DEFECTS NOTED, AIRCRAFT RETURNED TO SERVICE FOR RE

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