What was found
PER T/C 78472010 #1 ENGINE FAN BLADE LUBE, BLADES #2, #14, #16 #17, AND #18, CU-NI-IN COATING IS MISSING BEYOND LIMITS. GROUNDED - YES. REPLACED BLADES #2+14, #14+2, #16+4, #17+5, AND #18+6 PER T/C 78472010 ON ENG #1.
- Difficulty date
- September 20, 2021
- Submitted
- September 21, 2021
- Operation
- Air carrier
- Aircraft
- N434AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 61620
- Aircraft time
- 20,500 hours, 6,458 cycles
- Engine
- Ge
- System (JASC)
- 7220 · Turbine Engine Air Inlet Section
- Part
- Blade
- Part number
- 3400010360
- Condition
- Damaged
- Location
- #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.