# SDR ASAA2015012110347

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2015
- Submitted: January 26, 2015
- Operation: Air carrier
- Aircraft: [N589AS](https://openairdocs.org/aircraft/N589AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35686
- Aircraft time: 27,326 hours, 8,384 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- 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
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015012110347

## Discrepancy

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.

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