# Incident 19860117004059I: Doug DC871, Chicago, IL, January 17, 1986

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: January 17, 1986, 11:00 local time
- Place: Chicago, IL
- Airport: Ohare International
- Phase of flight: Normal Cruise
- Operating rules: Air carrier (Part 121)
- Operator: UALA
- Location: 41.8500° N, 87.6501° W: Placed by OpenAirDocs: center of Chicago, IL, within about 9 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8500&lon=-87.6501&mi=10
- Aircraft: N8091U, a cancelled registration (https://openairdocs.org/deregistered/N8091U-2006-04-13) (OpenAirDocs)
- Registry model: Mcdonnell Douglas DC-8-71F (registry code 302199G, https://openairdocs.org/model/mcdonnell-douglas-dc-8-71f) (OpenAirDocs)
- Registry engine: CFM International CFM56 series (registry code 13802, https://openairdocs.org/engine/cfm-international-cfm56-series) (OpenAirDocs)
- Reported make and model: DOUG DC871
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19860117004059I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

DESCENDED DUE TO INABILITY TO MAINTAIN CABIN PRESSURE. GROUND AIR CONDITIONING CHECK VALVE STUCK OPEN. DOOR OFF.

## Other reports on N8091U (2)

Matched to the same aircraft by N-number and date.

- [Incident 19830705035999I](https://openairdocs.org/incident/19830705035999I), Jul 5, 1983: Doug DC8* (N8091U), Chicago, IL, Substantial damage. Experienced a failure and fire of #1 engine on climbout. Engine shut down. Turbine failure and evidence of fire.
- [Incident 19821111065169I](https://openairdocs.org/incident/19821111065169I), Nov 11, 1982: Doug DC8* (N8091U), Portland, OR. Crew detected smoke in cabin. Returned. Found a wing flood light transmitter in panel had overheated.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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