What was found
NR 1 ENGINE WAS OBSERVED TO HAVE MELTED MATERIAL ON THE FRONT COMPRESSOR CASE BETWEEN THE 2ND AND 3RD STAGE VSV ACTUATION RINGS FROM APPROX THE 4 O’CLOCK TO 2 O’CLOCK POSITION. GROUNDED - YES. REMOVED AND REPLACED NR 1 ENGINE.
- Difficulty date
- October 16, 2018
- Submitted
- October 17, 2018
- Operation
- Air carrier
- Aircraft
- N564AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35103
- Aircraft time
- 45,789 hours, 13,831 cycles
- Engine
- Cfmint CFM567B273
- Engine time
- 35,107 hours, 10,546 cycles
- System (JASC)
- 7230 · Turbine Engine Compressor Section
- Part
- Not Reported
- Condition
- Melted
- Location
- Nr 1 Engine
- Part time
- 35,107 hours, 10,546 cycles
- 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.