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DOT/FAA RIN: 2120-AK83 Publication ID: Spring 2021 
Title: Medium Flocking Bird Test at Climb Condition 
Abstract: This rulemaking would add an additional medium flocking bird test to existing requirements, in response to the January 15, 2009 US Airways Flight 1549 Hudson River ditching. The subsequent investigation revealed existing requirements do not adequately demonstrate engine core bird ingestion capability at climb condition. The intended effect of the proposed rule is to ensure that future engine designs will be robust against core bird ingestions at climb condition. 
Agency: Department of Transportation(DOT)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 14 CFR 3376   
Legal Authority: 49 U.S.C. 106(g)    49 U.S.C. 40113    49 U.S.C. 44701    49 U.S.C. 44702    49 U.S.C. 44704   
Legal Deadline:  None
Action Date FR Cite
NPRM  07/06/2018  83 FR 31479   
NPRM Comment Period End  09/04/2018 
Final Rule  10/00/2021 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Undetermined 
Small Entities Affected: Organizations  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL:   Public Comment URL:  
RIN Data Printed in the FR: No 
Agency Contact:
Alan Strom
Department of Transportation
Federal Aviation Administration
1200 District Avenue,
Burlington, MA 01803
Phone:781 238-7143