Final
None
Feb 15, 2020
N521NK accident at Sacramento, CA
Airbus A319 — Electrical system malf/failure at SMF (Sacramento, CA)
DateFeb 15, 2020
Tail numberN521NK
AircraftAirbus A319 · A319
LocationSMF — Sacramento, CA
Phase of flightApproach
OperationPart 121
InjuriesNone
NTSB caseENG20LA016
Probable cause
A worn component within each engine integrated drive generator (IDG) resulted in the loss of electrical power supplied to several flight deck displays and systems while on approach to landing. The component, a fixed cylinder block, had significant wearing of its reworked brass liners resulting in the IDGs producing a frequency output outside of their specified design limit.
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