SDR ASAA201805214706

Service difficulty report · Blades · Boeing 737890

Difficulty date: May 20, 2018
Submitted: May 21, 2018
Operation: Air carrier
Aircraft: N583AS
Make and model: Boeing 737890
Aircraft serial: 35681
Aircraft time: 40,999 hours, 12,121 cycles
Engine: Cfmint CFM567B27B3
System (JASC): 7220 · Turbine Engine Air Inlet Section
Part: Blades
Part number: 3400010260
Condition: Damaged
Location: Nr 2 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

IAW T/C 78472002, NR 2 ENGINE STEP 29 BLADES NR 1, 8, 13, 14, 15, 17, 18, 19, AND 20, HAVE MISSING CU-NI-IN COATING BEYOND LIMITS ON THE CONVEX SIDE. BLADES 6, 15, & 16 HAVE MISSING CU-NI-IN COATING BEYOND LIMITS ON THE CONCAVE SIDE. NR 2 BLADE CU-NI-IN COATING IS OUT OF LIMITS, CONCAVE SIDE. ACFT GROUNDED. REMOVED AND REPLACED THE BLADES IAW T/C 78472002, AND AMM 72-21-02-000-802-F00 STEPS J-L.