# SDR ASAA2023110145971

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 1, 2023
- Submitted: November 3, 2023
- Operation: Air carrier
- Aircraft: [N493AS](https://openairdocs.org/aircraft/N493AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41727
- Aircraft time: 27,271 hours, 8,536 cycles
- System (JASC): [7220 · Turbine Engine Air Inlet Section](https://openairdocs.org/jasc/7220)
- Part: Blade
- Part number: 3400018160
- Condition: Worn
- Location: #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/ASAA2023110145971

## Discrepancy

FOUND EXCESSIVE WEAR / DAMAGE ON MULTIPLE FAN BLADE PLATFORMS ON #1 ENGINE. GROUNDED - YES. REF W/O 1969863REF T/C SBCFM56-7B-72-1033-1. REMOVED AND REPLACED ALL FRAN BLADE PLATFORMS DURING FAN LUBE T/C ON #1 ENGINE. PERFORMED ENGINE POWER RUN TEST #7 REF AMM 71-00-00. ALL CHECKS OKAY.

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