# SDR ASAA2021010933854

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 9, 2021
- Submitted: January 12, 2021
- Operation: Air carrier
- Aircraft: [N434AS](https://openairdocs.org/aircraft/N434AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 61620
- Aircraft time: 18,147 hours, 5,729 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7220 · Turbine Engine Air Inlet Section](https://openairdocs.org/jasc/7220)
- Part: Spacer
- Part number: 3401169310SD
- Condition: Debonded
- Location: Nr 2 Eng Fan
- 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/ASAA2021010933854

## Discrepancy

WHILE ACCOMPLISHING T/C 78472010 NR 2 ENGINE FOUND, 9 FAN BLADE SPACERS WITH ELASTOMERIC MATERIAL DISBONDING, ALL 24 FAN BLADE PLATFORMS, HAS WEAR PATTERN FROM CONTACT WITH HUB.  GROUNDED-YES.  REMOVED AND REPLACED 9 EA FAN BLADE SPACERS, ON NR 2 ENGINE, AND 24 EA FAN BLADE PLATFORMS, REF T/C 78482010.

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