# SDR ASAA2022111740867

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 2022
- Submitted: November 21, 2022
- Operation: Air carrier
- Aircraft: [N529AS](https://openairdocs.org/aircraft/N529AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35198
- Aircraft time: 44,749 hours, 13,173 cycles
- Engine: Cfmint CFM567B20
- System (JASC): [7220 · Turbine Engine Air Inlet Section](https://openairdocs.org/jasc/7220)
- Part: Rub Strip
- Part number: 3400018160
- Condition: Debonded
- 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/ASAA2022111740867

## Discrepancy

REF ASA T/C 78472010 #1 ENG. CFM56-7 FAN BLADE LUBRICATION. FOUND PLATFORM #8 HAS BOTH RUBSTRIPS DEBONDED HALF WAY DOWN. #8 IS PRE-SERVICE (816) REQ #20 TO BE REPLACED. GROUNDED - YES. REPLACED #8 AND #20 PLATFORM IAW T/C 78472010 STEP 1.C.(3) AND 1.A.(35). (817-7 PLATFORMS INSTALLED. VIBE SURVEY ACCOMPLISHED REF T/C 78472010. VIBES NORMAL LIMITS.

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