On July 29, 1989, a commercial airliner experienced a lightning strike that affected the aircraft while in flight; contemporaneous news accounts reported that lightning entered the cabin and injured at least one passenger. The event occurred during an era when jet transport had long adopted comprehensive lightning-protection measures, and investigations routinely examined how discharges interacted with airframe structures, wiring and cabin openings. Lightning strikes on aircraft are common: modern airliners are designed to be struck without catastrophic damage, using conductive skin, bonding straps and dedicated paths for electrical currents so that the charge passes safely around the exterior. Nonetheless, strikes can produce secondary effects—electrical transients, damage to composite materials, punctures to static wicks or antennas, and in rare cases, entry of current into the cabin through metal fittings, service panels or improperly sealed access points. Injuries to occupants are uncommon, but when they occur they are usually caused by electrical shock, burns, or secondary trauma from sudden jolts. Contemporary reporting of the 1989 incident emphasized the rarity of serious outcomes and focused on operational responses: the flight crew's emergency procedures, any diversion or unscheduled landing, and follow-up inspections of the airframe and systems. Airline and regulatory authorities typically require immediate post-strike inspections to check for structural damage, compromised fuel tanks, or impaired avionics. Medical evaluations are also standard for crewmembers and passengers who report symptoms. The incident contributed to continuing attention on maintenance and inspection protocols for aircraft of that period, particularly as jet fleet compositions shifted toward increasing use of composite materials. Composites behave differently under lightning strike than traditional aluminum skins: they can be more vulnerable to internal delamination and hidden damage, which in turn led manufacturers and regulators in the late 20th century to update standards for lightning protection, bonding and post-strike nondestructive testing. Public accounts from the time convey the basic facts—strike, cabin effect, at least one injured person—but many operational and investigative details are typically handled by airlines and aviation authorities and may not be fully available in public summaries. Where specifics such as the airline, flight number, exact mechanism of cabin entry, or final investigation report are not cited in contemporaneous press items, they should be treated as unresolved in this summary. Overall, the July 29, 1989 incident serves as a reminder that while lightning strikes to aircraft are usually noncatastrophic thanks to design and procedures, they can still produce localized hazards to occupants and systems. Such events have reinforced aviation practices: inspections after strikes, continual refinement of lightning-protection design, and medical evaluation protocols for anyone aboard who might have suffered electrical injury.