- Difficulty date
- July 14, 2019
- Submitted
- July 15, 2019
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35180
- Aircraft time
- 48,150 hours, 14,381 cycles
- Engine
- Cfmint CFM567B27
- Part
- Turbine
- Part number
- 3401688030
- Condition
- Dented
- 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
#1 ENGINE REAR TURBINE FLANGE DENTED @ 3&9 OCLOCK POSITION. GROUNDED - YES. REMOVED AND REPLACED #1 ENG REAR TURBINE FLANGE REF. AMM 72-56-00-000-802-F00 STEPS (E) AND (F) 1, 2 AND 4 AND AMM 72-56-00-400-801-F00 F(2), (3) AND G(1) AND (2).