What was found
DURING T/C 7842002, FOUND SHIMS 1 THROUGH 24 HAD SIGNS OF AXIAL RETENTION DISTORTION MORE THAN 0.04 X 0.04 INCH ON THE NR 1 ENGINE. ACFT GROUNDED. REPLACED THE SHIMS IAW T/C 7872002.
- Difficulty date
- June 15, 2018
- Submitted
- June 18, 2018
- Operation
- Air carrier
- Aircraft
- N491AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44109
- Aircraft time
- 10,364 hours, 3,502 cycles
- Engine
- Cfmint CFM567B27E
- System (JASC)
- 7220 · Turbine Engine Air Inlet Section
- Part
- Shim
- Part number
- 3402523070
- Condition
- Distorted
- 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.