NTSB Identification: CHI87IA039.
The docket is stored on NTSB microfiche number 35300.
Scheduled 14 CFR NORTHWEST AIRLINES
Incident occurred Monday, December 01, 1986 in MADISON, WI
Probable Cause Approval Date: 04/25/1988
Aircraft: DOUGLAS DC-9-51, registration: N786NC
Injuries: 114 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

AIRCRAFT SLID OFF THE RIGHT SIDE THE RUNWAY DURING THE ROLLOUT FROM A CROSS WIND LANDING AND STRUCK 6 RUNWAY EDGE LIGHTS CAUSING MINOR DAMAGE TO THE INBOARD TRAILING EDGE OF THE RIGHT FLAP. AT THE TIME OF THE INCIDENT THERE WAS 1/2 INCH OF SNOW ON THE RUNWAY AND BRAKING ACTION WAS REPORTED AS POOR. THE PIC WAS ABLE TO REGAIN CONTROL AND RETURNED THE AIRCRAFT TO THE RUNWAY WHERE THE REMAINDER OF THE LANDING ROLL WAS COMPLETED WITHOUT FURTHER INCIDENT.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

DIRECTIONAL CONTROL..NOT MAINTAINED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

GROUND LOOP/SWERVE..NOT CORRECTED..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..CROSSWIND



Contributing Factors

WEATHER CONDITION..SNOW


Contributing Factors

LIGHT CONDITION..DARK NIGHT

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