# SDR ASAA2019121091557

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 9, 2019
- Submitted: December 10, 2019
- Operation: Air carrier
- Aircraft: [N560AS](https://openairdocs.org/aircraft/N560AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35179
- Aircraft time: 50,842 hours, 15,195 cycles
- Engine: Cfmint CFM567B27
- Engine time: 50,842 hours, 15,195 cycles
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Blade
- Condition: Damaged
- Location: Lt Engine
- Part time: 50,842 hours, 15,195 cycles
- Stage of operation: IN
- How discovered: B
- Nature of condition: M
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019121091557

## Discrepancy

DURING ACCOMPLISHMENT OF NR 1 ENG HPT BLADES FOR EGT EXCEEDANCE BOROSCOPE, FOUND EVIDENCE OF MELTING TO THE TRAILING EDGE ON 1 HPT BLADE IN AREA B.  GROUNDED - YES. REMOVED & REPLACED NR 1 ENGINE IAW TASK CARDS 78471000, 78471001 UNDER W/O 1014088. PERFORMED NR 1 ENGINE DUCT PURGE IAW PWRPL-71EA-11276.

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