What was found
NR 4 ENG VIBES, FLIGHT DIVERTED. REPLACED BLADE SETS 8,27 AND 15,34 PER MM.
- Difficulty date
- April 5, 2012
- Submitted
- June 5, 2012
- Operation
- Air carrier
- Aircraft
- N197UA
- Make and model
- Boeing 747422
- Aircraft serial
- 26901
- Aircraft time
- 59,466 hours, 7,048 cycles
- Engine
- Pwa PW4056
- Engine time
- 71,212 hours, 10,040 cycles
- System (JASC)
- 7200 · Engine (Turbine/Turboprop)
- Part
- Blade
- Condition
- Damaged
- Location
- Nr 4 Engine
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- E
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.