What was found
AIRCRAFT EXPERIENCED FISHTAILING, LASTING 30 SECONDS. SYNOPTIC INDICATED INDEPENDENT CYCLING OF LT & RT FLAPERONS NEAR FULL UP DEFLECTION. AFTER 3-4 CYCLES OPS NORMAL. AUTOPILOT ENGAGED DURING ENCOUNTER, FL380. NO FMC DIRECTED TURNS.
- Difficulty date
- December 5, 2002
- Submitted
- December 18, 2002
- Operation
- Air carrier
- Aircraft
- N209UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30215
- Aircraft time
- 12,556 hours, 1,871 cycles
- Engine
- Pwa PW4090
- System (JASC)
- 2710 · Aileron Control System
- Part
- Flaperon
- Condition
- Malfunctioned
- Location
- Lt & Rt
- Stage of operation
- CR
- 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.