Incident: Airbus A220
Jul 25, 2019 · Perrigny-sur-Armançon, FR
NTSB numberENG19IA029Event id20190801X04456
- 0
- Fatalities
- 0
- Serious injuries
- 0
- Minor injuries
- 121
- Uninjured
Probable cause
A No. 1 (left) engine low pressure compressor (LPC) stage 1 integrally bladed rotor (IBR) separation due to a high cycle fatigue crack (HCF) that originated at the runout of an airfoil leading edge root radius. The HCF crack developed as a result of a mechanically coupled LPC stage 3 and stage 1 IBR mode excitation and blade flutter response. The excitation was driven by an acoustic tone generated by turbulent airflow passing over the 2.5 bleed valve duct cavity while the engine was operating at high speeds in specific flight conditions. A primary contributor to the failure mode was an electronic engine control (EEC) software update that changed the LPC vane schedule and increased the likelihood of LPC stage 1 IBR blade flutter onset within the engine operating range.
Source: National Transportation Safety Board. Record last changed Oct 28, 2026, 10:54 UTC.
Aircraft involved
- Aircraft
- Airbus A220
- Registration
- HB-JCM
- Year built
- 2018
- Category
- Airplane
- Damage
- Minor
- Operating rules
- Non-US, commercial
- Defining event
- Enroute-climb to cruise Powerplant sys/comp malf/fail
Source: National Transportation Safety Board aviation accident database. Counts only; Voydar holds no names.
This page restates the NTSB's public record. Injury figures are counts; Voydar does not hold or publish the names of anyone involved.