Casualties unknown

1997-07-15: Boeing 737-522 (N956UA) — Ontario, CA

Ontario, CA, US

On July 15, 1997, a Boeing 737-522 (registration N956UA) was involved in an aviation accident near Ontario, CA. Investigators recorded the probable cause as: a laser light source of undetermined origin directed toward the cockpit window of an aircraft in-flight by a person or persons unknown. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards
Boeing 737-522
Photo: San Diego Air & Space Museum Archives / Public domain, via Wikimedia Commons

A commercial aircraft crew reported a red laser sweeping across the cockpit during descent. No injuries occurred. Investigators from multiple agencies were notified but the source remains undetermined.

Incident Overview

During a descent on radar vectors for the final approach course, the flight crew observed a red laser beam that swept across the cockpit multiple times. After a brief pause, the laser encounter reoccurred. At the time, the aircraft was several miles from the approach end of the runway. The crew noted that the laser originated from a point on the ground north of their position.

Response and Investigation

The crew promptly notified air traffic control of the laser incident. No injuries were reported among those onboard. Investigators from the Federal Drug Administration (FDA), the Federal Bureau of Investigation (FBI), and airborne law enforcement personnel were notified. Despite these efforts, the source of the laser light remains undetermined. Additionally, there were no Notices to Airmen (NOTAMs) in effect for laser light activity in the area at the time of the incident.

Conclusion

The incident highlights the ongoing challenge of laser illuminations in aviation. As of the investigation's conclusion, the responsible party has not been identified.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X08416. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.