# SDR AALA20150409002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2015
- Submitted: April 21, 2015
- Operation: Air carrier
- Aircraft: [N904NN](https://openairdocs.org/aircraft/N904NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33317
- Aircraft time: 8,209 hours, 3,265 cycles
- Engine: Cfmint CFM567B242
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Bird Ingestion
- Location: Right
- Stage of operation: CL
- How discovered: O
- Nature of condition: C, E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20150409002

## Discrepancy

DURING TAKEOFF THE RT ENG EXPERIENCED HIGH VIBRATION.  RETURNED TO DEPARTURE, EMERGENCY DECLARED & LANDING UNEVENTFUL.  RT ENGINE INSPECTION FOUND EVIDENCE OF BIRD STRIKE WITH DAMAGE TO MULTIPLE BLADES & BIRD REMAINS IN CORE.  REMOVED AND REPLACED DAMAGED FAN BLADES PER MCM CARD 72-94-02. PERFORMED ENGINE FAN TRIM BALANCE PER MCM CARD 77-95-12. SYSTEM CHECKS NORMAL.

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