# Incident 19790914035389I: Boeing 747122, Chicago, IL, September 14, 1979

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: September 14, 1979, 14:56 local time
- Place: Chicago, IL
- Airport: Ohare
- 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: N4727U, a cancelled registration (https://openairdocs.org/deregistered/N4727U-1998-02-17) (OpenAirDocs)
- Registry model: Boeing 747-122 (registry code 1384872, https://openairdocs.org/model/boeing-747-122) (OpenAirDocs)
- Reported make and model: BOEING 747122
- People aboard: 157
- 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/19790914035389I

## Narrative

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

AIRCRAFT RETURNED TO FIELD WITH HYDRAULIC FLAP PROBLEM. DUE TO FAILED RIGHT OUTBOARD FLAP SYSTEM TRANSMITTER.

## Other reports on N4727U (4)

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

- [Incident 19900815049449I](https://openairdocs.org/incident/19900815049449I), Aug 15, 1990: Boeing 747122 (N4727U), Honolulu, HI. Loss of oil on NR1 engine. Shut down and headed for Honolulu without clearance. Aft seal had failed.
- [Incident 19830521028699I](https://openairdocs.org/incident/19830521028699I), May 21, 1983: Boeing 747122 (N4727U), Chicago, IL, Minor damage. Blew a tire on takeoff. Continued to destination. Replaced no. 5 and no. 6 tires.
- [Incident 19800910082649I](https://openairdocs.org/incident/19800910082649I), Sep 10, 1980: Boeing 747122 (N4727U), Honolulu, HI. Flight attendant struck on the head by overhead bin door. Latch was faulty, and bin was overloaded.
- [Incident 19800505050759I](https://openairdocs.org/incident/19800505050759I), May 5, 1980: Boeing 747122 (N4727U), Chicago, IL. Aircraft returned to gate due to anti-skid inop. Light on. Number 5 front brake anti-skid found inop.

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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