Incident · 2001-01-16

NTSB case SEA01IA039 · McDonnell Douglas DC-8-71F · Part 121

What the record says

Event date: 2001-01-16
Event type: Incident
Highest injury level: No injuries
Aircraft: McDonnell Douglas DC-8-71F (N8084U)
Operating rule: Part 121
Operator: EMERY WORLDWIDE AIRLINES Operator named in NTSB report
Operated by (per NTSB report): Emery Worldwide Airlines

Probable cause

A malfunctioning relay in the aircraft's flight management system (FMS) switching matrix and associated false "on course" indication on the captain's course deviation indicator (CDI), resulting in proper localizer course alignment not being obtained or maintained and subsequent flight in close proximity to the new control tower. The reason for the reported false "on course" indications on the first officer's CDI was not determined. Factors contributing to the incident included low ceiling and obscuration, weak signal received by both localizer receivers due to faulty BNC connectors, and the new control tower.

Source: NTSB case SEA01IA039

Flight crew

Flight-crew details for this event aren't in the NTSB database extract we hold (its coverage starts with 2008 events) — a gap in our data, not an absence of crew.

Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.

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