What was found
PER T/C 78472010 #1 ENG FAN BLADE LUBE. #3 FAN BLADE CU-NI-IN COATING WORN BEYOND LIMITS ON CC SIDE. GROUNDED - YES. REMOVED AND REPLACED #1 ENG #3 AND 15 FAN BLADES REF TASKCARD 78472010.
- Difficulty date
- July 13, 2021
- Submitted
- July 14, 2021
- Operation
- Air carrier
- Aircraft
- N407AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41731
- Aircraft time
- 32,773 hours, 10,329 cycles
- Engine
- Cfmint CFM567B27E
- System (JASC)
- 7220 · Turbine Engine Air Inlet Section
- Part
- Blade
- Part number
- 3400010360
- Part serial
- DM0441037
- Condition
- Worn
- Location
- Nr 1 Eng Fan
- Part time
- 32,765 hours, 10,326 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.