What was found
LEFT ENGINE HAS PRONOUNCED VIBRATION AT 76 PERCENT N2 ABOVE 2.0. *S/D* LUBED FAN BLADES AND TRIM BALANCED. VIBRATION IS NOW WITHIN LIMITS.
- Difficulty date
- March 14, 2008
- Submitted
- December 22, 2008
- Operation
- Air carrier
- Aircraft
- N228UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30556
- Aircraft time
- 24,722 hours, 3,182 cycles
- Engine
- Pwa PW40903
- Engine time
- 40,720 hours, 5,902 cycles
- System (JASC)
- 7230 · Turbine Engine Compressor Section
- Part
- Fan
- Condition
- Vibration
- Location
- Lt Engine
- Part time
- 40,720 hours, 5,902 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- E
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.