What was found
PER TC 78472010 #1 ENGINE FAN BLADE LUBE #20 FAN BLADE CU-NI-IN COATING MISSING BEYOND LIMITS ON CC SIDE. GROUNDED - YES. REPLACED #1 ENGINE FAN BLADE #20 AND #8 REF T/C 78472010.
- Difficulty date
- January 20, 2022
- Submitted
- January 22, 2022
- Operation
- Air carrier
- Aircraft
- N402AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41189
- Aircraft time
- 34,186 hours, 10,982 cycles
- System (JASC)
- 7220 · Turbine Engine Air Inlet Section
- Part
- Blade
- Part number
- 3400010360
- Part serial
- DM065400K
- Condition
- Damaged
- Location
- #1 Engine
- Part time
- 34,186 hours, 10,982 cycles
- 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.