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| Date: | Sunday 14 January 2018 |
| Time: | |
| Type: |  Boeing 737-924ER (WL) |
| Owner/operator: | United Airlines |
| Registration: | N68817 |
| MSN: | 42747/4809 |
| Year of manufacture: | 2014 |
| Engine model: | CFMI CFM56-7B |
| Fatalities: | Fatalities: 0 / Occupants: |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Location: | PDX-ORD -
 United States of America
|
| Phase: | Unknown |
| Nature: | Passenger - Scheduled |
| Departure airport: | KPDX |
| KORD | |
| Confidence Rating: |  Information is only available from news, social media or unofficial sources |
A passenger on flight 558 operating from Portland, OR (PDX) to Chicago, IL (ORD) had a battery/powerpack that was overheating, got hot and started to smoke. The item was placed in a thermal containment bag.
Sources:
FAA
Revision history:
| Date/time | Contributor | Updates |
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