Final
1 minor
Dec 4, 2016
N161SY accident at San Antonio, TX
Embraer ERJ170 200LR — Landing gear collapse at SAT (San Antonio, TX)
DateDec 4, 2016
Tail numberN161SY
AircraftEmbraer ERJ170 200LR · Embraer E170/E175
LocationSAT — San Antonio, TX
Phase of flightLanding
OperationPart 121
Injuries1 minor
NTSB caseENG17IA005
Probable cause
A failure of the nose landing gear down lock spring which precluded normal downlock operation of the nose landing gear. The spring failure was due to the presence of too much retained austenite which led to the formation of progressive cracking and subsequent failure of the spring.
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