- Date
- August 8, 1987, 14:25 local (19:25 UTC)
- Place
- Chicago, IL
- Injuries
- 135 uninjured
- Phase of flight
- Enroute
- Aircraft
- CGYNEBoeing 727-233N20ATCessna 650
- Weather
- Instrument (IMC) · Day
- Status
- Completed · report July 10, 1989
- Report
- Approved by Office Director
- Case key
- 13672
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
Air Canada flt 839 (Boeing 727, c-gyne) was depg Chicago o'hare intl arpt as Cessna 650 (citation), N20AT, was depg palwaukee (pwk) arpt, about 8 mi north of o'hare. Both flts tkof with IFR flt plans. Bfr the citation tkof, the pwk twr ctlr ctcd the TRACON north satellite ctlr (NC) & obtained clnc for the citation to takeoff on rwy 16 with a pwk #1 departure. Flt 839 took off fm rwy 32R at o'hare & bgn a rgt turn to 020 deg, clbg to 5000'. At about the same time, the citation depd rwy 16 at pwk & bgn a rgt turn while clbg to 3000'. The 2 acft converged nrly head-on & passed close to each otr. Flt 839 estd they passed with aprx 500' sepn, the citation crew estd 100' sepn. Both flts were in ctc with TRACON; flt 839 was in ctc with the east dep ctlr (ec); the citation crew were in ctc with NC. The 2 ctlrs were working side-by-side, sharing the same radar scope. There was an available light to warn of acft depg pwk, but it was not being used. Written procedures for use of the light were not specific. Traffic was described as moderate to busy.
Aircraft · 2
- Registration
- CGYNE
- Reported as
- Boeing 727-233
- Category
- Airplane
- Serial number
- 22345
- Engine
- P&W JT8D-15, 15,500 lbs thrust, turbo fan
- Damage
- No damage
- Flight
- Part 129
- Registered owner
- Air Canada
- Airworthiness certificate
- Standard, Transport
- Departed
- ORD · Chicago, IL
- Destination
- CYYC · Calgary,Canada, OF
- Flight plan
- IFR
- Airport
- PWK · Palwaukee
- Registration
- N20AT
- Reported as
- Cessna 650
- Category
- Airplane
- Serial number
- 109
- Engine
- Airesearch TFE-731, 3,650 lbs thrust, turbo fan
- Damage
- No damage
- Flight
- Executive/Corporate · Part 91
- Registered owner
- Quaker Oats Company
- Airworthiness certificate
- Standard, Normal
- Departed
- PWK · Wheeling, IL
- Destination
- SBN · South Bend, IN
- Flight plan
- IFR
- Airport
- PWK · Palwaukee
Flight crew · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot, aircraft 1
- Certificate
- Foreign
- Airplane ratings
- Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 7,005 total · 4,766 in this make and model · 5 in the last 24 hours
- Role
- Pilot, aircraft N20AT
- Age
- 37
- Certificate
- Airline transport
- Airplane ratings
- Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 6,100 total · 100 in the last 90 days
Weather
- Conditions
- Instrument (IMC) · Day
- Visibility
- 1 statute miles
- Lowest ceiling
- 3,300 ft overcast
- Observed at
- ORD, 6 nm away