Sep 8, 2009
Incident
Minor St. Johns
InjuriesNone
Phase of Flight-
ConditionsUnk
OperationFAR 121
Probable Cause
Incorrect installation of a wire bundle, which contained wires for oxygen system, passenger address system and lavatory power, led to chafing of the wires on structure. The chafing eventually exposed the wire conductors and resulted in electrical arcing, malfunction of the affected systems and a sulfur odor.
NTSB ENG09IA016