What was found
#1 ENG, WHILE DOING HPT BLADE BORESCOPE INSPECTION, FOUND LPT STAGE 1 NOZZLE GUIDE VANE APPROX, AT 9 OCLOCK POSITION HAS 1 AXIAL CRACK BWTEEN 1/2 TO 3/4 CHORD LONG. GROUNDED - YES. ON DEFERRAL.
- Difficulty date
- January 21, 2023
- Submitted
- January 25, 2023
- Operation
- Air carrier
- Aircraft
- N537AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35204
- Aircraft time
- 40,634 hours, 11,735 cycles
- Engine
- Cfmint CFM567B27
- System (JASC)
- 7250 · Turbine Section
- Part
- Guide Vane
- Condition
- Cracked
- Location
- Nr 1 Hpt
- 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.