SDR ASAA2017080721557

Service difficulty report · Blades · Boeing 737890

Difficulty date: August 7, 2017
Submitted: August 8, 2017
Operation: Air carrier
Aircraft: N566AS
Make and model: Boeing 737890
Aircraft serial: 35182
Aircraft time: 40,595 hours, 12,150 cycles
Engine: Cfmint CFM567B27
System (JASC): 7220 · Turbine Engine Air Inlet Section
Part: Blades
Part number: 3400010380
Condition: Damaged
Location: Nr 1 Engine Fan
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

DURING ACCOMPLISMENT OF T/C 78472002, FOUND DAMAGED CU-NI COATING GREATER THAN AREA X WITH NO WEAR ON BASE MATERIAL DOVE TAIL PRESSURE FACE, IAW AMM 72-21-200-801-F00 STEP 2K(1)(C). NR 1 ENGINE BLADES 1, 4, 9, 11, 18, 19, 20, 22, 23, AND 24. ACFT GROUNDED. REMOVED AND REPLACED ALL 24 FAN BLADES ON NR 1 ENGINE IAW AMM 72-21-02-900-801-F00.