SDR ASAA2018062025152

Service difficulty report · Blade · Boeing 737890

Difficulty date: June 20, 2018
Submitted: June 22, 2018
Operation: Air carrier
Aircraft: N586AS
Make and model: Boeing 737890
Aircraft serial: 35189
Aircraft time: 40,725 hours, 12,415 cycles
Engine: Cfmint CFM567B27B3
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Blade
Part number: 3400010260
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

NR 1 ENG SUB TASK 839-032 STEP 34 BLADES 6,7 & 15 MISSING CU-NI-IN COATING OUT OF LIMITS CONCAVE SIDE BLADE 6 P 340-001-026-0 S AB631390-WBLADE 7 P 340-001-026-0 S AB631356-RBLADE 15 P 340-001-026-0 S BB862787-Y. GROUNDED - YES. REMOVED AND REPLACED FAN BLADE 6, 7, 15 AND ASSOCIATED PAIRS (3, 18, 19) REFERENCE TASK CARD 7842002.