Sep 18, 2009
Incident
Minor Newark, NJ
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 121
Probable Cause
Failure of Main Landing Gear (MLG) truck beam was due to contamination of the inner surface corrosion protective layers from hydraulic fluid and deice fluid that resulted in corrosion and intergranular stress corrosion cracking.
NTSB ENG09IA018