# SDR ASAA2021101436329

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2021
- Submitted: October 18, 2021
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 52,254 hours, 15,536 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7220 · Turbine Engine Air Inlet Section](https://openairdocs.org/jasc/7220)
- Part: Engine
- Part number: CM567B27
- Part serial: 894540
- Condition: None
- Location: Left Wing
- Part time: 52,253 hours, 15,536 cycles
- Stage of operation: IN
- How discovered: B
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021101436329

## Discrepancy

WHILE ACCOMP T/C # 78472022 HPT DETAIL INSP FOUND 1 EACH LPT NGV DAMAGED. 2 HOLES ON ONE AIRFOIL, ONE OVER 0.039 LIMIT WITH AXIAL AND RADIAL CRACKING BEYOND B737-800 AMM LIMITS OF 72-00-00-200-811-F00 FIG 635 SHEET 4. PICTURE ON SEA SERVER. GROUNDED - YES. REMOVED #1 ENGINE REF T/C # 78471000. TRANSFER DEFECT TO SHOP W/O # 1888454.

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