# SDR ASAA2018091726148

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2018
- Submitted: September 17, 2018
- Operation: Air carrier
- Aircraft: [N423AS](https://openairdocs.org/aircraft/N423AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35206
- Aircraft time: 21,618 hours, 7,143 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Shim
- Part number: 3402523070
- Condition: Worn
- 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/ASAA2018091726148

## Discrepancy

WHILE ACCOMPLISHING T/C 78472002 FOUND ALL 24 SHIMS WORN ON NR 1 ENGINE. GROUNDED - YES. REPLACED ALL 24 SHIMS ON NR 1 ENGINE REF T/C 78472002.

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