What was found
NR 1 ENGINE REAR TURBINE FLANGE ASSY HAS APPROXIMATELY 6 FASTENERS THAT ARE CRACKED, OUT OF LIMITS IAW MM 72-56-00-211-803-F00, STEP D1, B1. ACFT GROUNDED. REPLACED NR 1 ENGINE TRF FLANGE ASSY REF MM 72-56-00-400, ITEM 3F, 2, A-D & G.
- Difficulty date
- January 21, 2015
- Submitted
- January 26, 2015
- Operation
- Air carrier
- Aircraft
- N589AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35686
- Aircraft time
- 27,326 hours, 8,384 cycles
- Engine
- Cfmint CFM567B27
- System (JASC)
- 7250 · Turbine Section
- Part
- Flange
- Part number
- 3401662100
- Condition
- Cracked
- 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.