What was found
NUMBER 1 ENGINE VIBRATION AT 5.0. INCORRECT REPLACEMENT OF 2 FAN BLADE PAIRS RESULTED IN UN-BALANCED FAN SYSTEM. REPLACED FAN BLADES.
- Difficulty date
- June 2, 2004
- Submitted
- June 8, 2004
- Operation
- Air carrier
- Aircraft
- N922UA
- Make and model
- Boeing 737522
- Aircraft serial
- 26642
- Aircraft time
- 34,301 hours, 25,738 cycles
- Engine
- Ge CFM56*
- System (JASC)
- 7200 · Engine (Turbine/Turboprop)
- Part
- Fan Blade
- Condition
- Incorrect
- Location
- Nr 1 Engine
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- E, J, W
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.