What was found
WHILE ACCOMPLISHING TASKCARD 78472010, FOUND NR 1 ENG FAN BLADE NR 17 WITH MISSING CU-NI-IN COATING ON CONCAVE SIDE OUT OF LIMITS. GROUNDED - YES. REMOVED AND REPLACED NR 17 AND NR 5 FAN BLADE PAIR ON NR 1 ENG. FAN BLADE LUBRICATION.
- Difficulty date
- March 18, 2019
- Submitted
- March 19, 2019
- Operation
- Air carrier
- Aircraft
- N403AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41730
- Aircraft time
- 25,357 hours, 8,335 cycles
- Engine
- Cfmint CFM567B27E
- System (JASC)
- 7230 · Turbine Engine Compressor Section
- Part
- Blade
- Part number
- 3400010360
- Condition
- Worn
- Location
- Nr 1 Engine
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.