Service difficulty report · Blade · Boeing 737890

Difficulty date
March 1, 2021
Submitted
March 3, 2021
Operation
Air carrier
Aircraft
N596AS
Make and model
Boeing 737890
Aircraft serial
35688
Aircraft time
46,422 hours, 13,863 cycles
Engine
Cfmint CFM567B27
Engine time
55,288 hours, 16,547 cycles
Part
Blade
Part number
CFM567B27
Part serial
893814
Condition
Cracked
Location
Lt Engine
Part time
55,288 hours, 16,547 cycles
Stage of operation
IN
How discovered
B
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

REF T/C # 78472022 SPECIAL DETAILED INSPECTION (SDI) (BOROSCOPE) - CFM56 - 7 ENG HPT BLADES. #1 ENG . S/N 893814. FOUND INTERSECTING CRACK LPT NGV STG - 1 ALONG W/3 FULL CRACKS IN FULLSET, 1 NGV W/HOLE LESS THAN .039 SQ. INCH ". GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE ESN # 893814. TRANSFERRED TO SHOP W/O #1865895.