SDR ASAA2018062525193

Service difficulty report · Blade · Boeing 737890

Difficulty date: June 25, 2018
Submitted: June 26, 2018
Operation: Air carrier
Aircraft: N516AS
Make and model: Boeing 737890
Aircraft serial: 39044
Aircraft time: 36,491 hours, 11,073 cycles
Engine: Cfmint CFM567B27
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Blade
Part number: 3400010260
Condition: Worn
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

ENG NR 1 FAN BLADE 1, 5, 6, 7, 8, 11, 20 HAS FAN BLADE ROOT CU-NI-IN COATING OUT OF LIMITS. NO BASE METAL WEAR NOTED. GROUNDED - YES. REPLACED 1, 5, 6, 7, 8, 11, AND 20 BLADES. REF TC 78472002. SEE TC 78472002, FIGURE 400 TABLE 2 FOR NEW BLADE P/N, S/N AND PLACEMENT.