SDR ASAA2018030923815

Service difficulty report · Blade · Boeing 737990ER

Difficulty date: March 9, 2018
Submitted: March 12, 2018
Operation: Air carrier
Aircraft: N403AS
Make and model: Boeing 737990ER
Aircraft serial: 41730
Aircraft time: 21,469 hours, 7,064 cycles
Engine: Cfmint CFM567B27
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Blade
Part number: 3400010360340001
Condition: Damaged
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.

What was found

WHILE ACCOMPLISHING T/C 78472002 FAN LUBE ON NR 1 ENG FOUND CU-NI COATING MISSING BEYOND AREA(X) ON CONCAVE SIDE TRAILING EDGE FAN BLADE NR 3, 4, 6, 7, AND 8. GROUNDED - YES. ON NR 1 ENG REMOVED AND REPLACED FAN BLADE 3, 4, 6, 7 AND 8 AND THEIR PAIRED OPPOSITE BLADE 15, 16, 18, 19 & 20. REF T/C 78472002.