# Incident 19790922050649I: Boeing 727222, Chicago, IL, September 22, 1979

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: September 22, 1979, 16:10 local time
- Place: Chicago, IL
- Airport: Ohare International
- Phase of flight: Normal Cruise
- 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: N7626U, a cancelled registration (https://openairdocs.org/deregistered/N7626U-2013-07-15) (OpenAirDocs)
- Registry model: Boeing 727-222 (registry code 1384073, https://openairdocs.org/model/boeing-727-222) (OpenAirDocs)
- Registry engine: Pratt & Whitney JT8D-5 (registry code 52046, https://openairdocs.org/engine/pratt-whitney-jt8d-5) (OpenAirDocs)
- Reported make and model: BOEING 727222
- People aboard: 33
- 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/19790922050649I

## Narrative

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

LOST "A" HYDRAULIC SYSTEM DUE TO A LEAK IN THE LINE BETWEEN "B" SYSTEM MODULE AND #2 ENGINE FIREWALL.

## Other reports on N7626U (2)

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

- [Incident 19800103010219I](https://openairdocs.org/incident/19800103010219I), Jan 3, 1980: Boeing 727222 (N7626U), Indianapolis, IN, Minor damage. Pilot's sliding window outer pane cracked. Replaced by maintenance at o'hare.
- [Incident 19781128024369I](https://openairdocs.org/incident/19781128024369I), Nov 28, 1978: Boeing 727 (N7626U), Des Moines, IA. After takeoff aircraft lost both VHF communications systems. Returned for landing.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.