What was found
PER T/C 78472010 #1 ENG FAN BLADE LUBE #12 BLADE CU-NI-IN COATING MISSING BEYOND LIMITS OF CONVEX SIDE. GROUNDED - YES. REPLACED #1 ENG FAN BLADE #12 AND ITS PAIR. INSTALLATION ACCOMPLISHED ON T/C 78472010.
- Difficulty date
- November 7, 2021
- Submitted
- November 9, 2021
- Operation
- Air carrier
- Aircraft
- N477AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 40716
- Aircraft time
- 22,948 hours, 7,175 cycles
- System (JASC)
- 7220 · Turbine Engine Air Inlet Section
- Part
- Blade
- Part number
- 3400010360
- Part serial
- DM1108152
- Condition
- Damaged
- Location
- #1 Engine
- Part time
- 22,944 hours, 7,174 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.