Boeing 747-227B N635US
19 February 1988 · Chicago, Illinois, United States · No injuries
Summary
On 19 February 1988 at about 18:07 local time, a Boeing 747-227B registered N635US was involved in an incident near Chicago, Illinois, United States. 297 people were on board and nobody was injured. No probable cause statement is available for this record.
The record
- Date
- at 18:07
- Classification
- Incident
- Location
- Chicago, Illinois, United States
- Nearest airport
- Chicago-O'hare Intl (ORD)
- Coordinates
- Not recorded
- Aircraft
- Boeing 747-227B
- Registration
- N635US
- Category
- Airplane
- Engines
- 4
- Operator
- Not recorded
- Operating rule
- Part 121: Air Carrier
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Unknown → Tokyo, Japan
- Aircraft damage
- Not recorded
- Weather
- VMC
- Light
- Day
- NTSB number
- CHI88IA073
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 297 | 0 | 0 | 0 | 297 |
Probable cause
The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.
Nothing about the cause is stated here that is not in the source record.
Read the full NTSB narrative
NORTHWEST FLT 3 (BOEING 747, N635US) WAS CLRD TO TAKEOFF ON RWY 14R AT THE SAME TIME AIR WISCONSIN FLT 925 (BAE 146, N602AW) WAS CLRD TO TAKEOFF ON RWY 22L AT THE CHICAGO-O'HARE INTL ARPT. SUBSEQUENTLY, THE TWO ACFT PASSED WITH AN ESTIMATED 3000 TO 4000 FT SEPARATION. THIS OCCURRED AFTER THE TOWER SUPERVISOR HAD NOT ASSURED COORDINATION BETWEEN THE NORTH & SOUTH LOCAL CONTROL POSITIONS. AT THE TIME OF THE OPERATIONAL ERROR, THE TOWER SUPERVISOR WAS ACTING AS BOTH THE SUPERVISOR & THE TOWER CAB COORDINATOR.
Quoted verbatim from the NTSB record.
Aircraft involved
| Aircraft | Registration | Operator | Damage |
|---|---|---|---|
| Boeing 747-227B 747-227B | N635US | - | - |
| British BAE 146-200 BAE 146-20 | N602AW | - | - |
Other Boeing 747 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 2 May 1988 | Boeing 747-123 | Nr Tokyo, Japan | United Airlines | No injuries | - |
| 1 Jun 1988 | Boeing 747-200 | Jamaica, New York, United States | - | No injuries | - |
| 23 Dec 1988 | Boeing 747SP-21 | Midway Islands, United States | United Airlines | Serious injuries | - |
| 14 Apr 1988 | Boeing 747 | Schiphol-Amster, Netherlands | KLM | Unknown | - |
| 21 Dec 1988 | Boeing 747-121 | Lockerbie, United Kingdom | Pan AM | Fatal | 259 |
| 16 Dec 1988 | Boeing 747-124 | Hong Kong | Flying Tiger | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 24 Oct 1988 | Boeing B-727-200A | Chicago, Illinois, United States | Northwest Airlines, Inc. | No injuries | - |
| 9 Oct 1988 | Beechcraft 55B | Quincy, Illinois, United States | - | No injuries | - |
| 9 Oct 1988 | Cessna 172 | Carbondale, Illinois, United States | - | No injuries | - |
| 26 Jan 1988 | Cessna T310R | Urbana, Illinois, United States | - | No injuries | - |
| 16 Oct 1988 | Piper PA-28-151 | Fairview Hts., Illinois, United States | Hurst Flight Training, Inc. | No injuries | - |
| 3 Feb 1988 | Cessna 421A | Wheeling, Illinois, United States | - | No injuries | - |