# Incident 19780114002959I: Doug DC10/, Chicago, IL, January 14, 1978

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: January 14, 1978, 06:31 local time
- Place: Chicago, IL
- Airport: Ohare International
- Phase of flight: Climb
- Operating rules: Air carrier (Part 121)
- Operator: UAL
- 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: N1835U, a cancelled registration (https://openairdocs.org/deregistered/N1835U-2002-06-10) (OpenAirDocs)
- Registry model: Mcdonnell Douglas DC-10-10 (registry code 3022110, https://openairdocs.org/model/mcdonnell-douglas-dc-10-10) (OpenAirDocs)
- Registry engine: GE CF6-6 series (registry code 30020, https://openairdocs.org/engine/ge-cf6-6-series) (OpenAirDocs)
- Reported make and model: DOUG DC10/
- People aboard: 108
- Fatal injuries: 0
- Pilot flight hours: 0 in this make and model, 0 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19780114002959I

## Narrative

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

CABIN PRESSURE UNCONTROLLABLE, OXYGEN MASKS DEPLOYED. FOUND FAULTY RAM VENT VALVE.

## Other reports on N1835U (3)

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

- [Incident 19921228056119I](https://openairdocs.org/incident/19921228056119I), Dec 28, 1992: Doug DC1010 (N1835U), Portland, OR. Pressurization problems on climb. Oxygen masks deployed. Returned. Landed safely.
- [Incident 19830516024059I](https://openairdocs.org/incident/19830516024059I), May 16, 1983: Doug DC1010 (N1835U), Honolulu, HI. Engine shutdown due to indication of no oil pressure. Found the scavange discharge line coupling was leaking oil.
- [Incident 19791212047319I](https://openairdocs.org/incident/19791212047319I), Dec 12, 1979: Doug DC10* (N1835U), Chicago, IL. Aircraft returned to gate due to first officer feeling dizzy. Diagnosed as flu.

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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