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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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NTSB Report

March 7, 1988 · Swearingen SA226T · N600TA

Chicago, IL

Overview

Report Status
Probable Cause
Event Type
Incident
Date
March 7, 1988
Injury Outcomes
No injuries (17 uninjured)
Location
Chicago, IL
Aircraft
Swearingen SA226T
Tail Number
N600TA
Injuries
None
NTSB Number
CHI88IA074

As Piper PA-31T, N484SC, was on an IFR departure from RWY 18 at Merril C Meigs Arpt, Swearingen SA226T, N600TA was on an IFR arrival. Subsequently, the 2 acft converged aprx 3 mi south of the Arpt. The crew of N484SC saw N600TA & turned to maintain separation. The passing distance was estimated to be about 2000 ft. An investigation revealed that as N600TA was arriving, the South Satellite Sector #1 controller (ctlr) at Chicago O'Hare TRACON had clrd the crew to dscnd & maintain 2000 ft. When they (N600TA) advised that Meigs was in sight, the Sector #1 ctlr clrd them for a visual apch & told them to contact Meigs Tower. At about that time, the South Satellite Sector #3 ctlr at TRACON was in contact with Meigs Tower to provide info about N600TA concerning another matter & had released N484SC for a south-bound departure. When the Sector #3 ctlr provided the release, he was unaware N600TA had been clrd for a visual apch. When N600TA contacted Meigs Tower, the Meigs Tower ctlr thought it was on a VFR arrival. Vis restricted by fog & haze.

NTSB Probable Cause

THE TRACON SUPERVISOR FAILED TO COMPLY WITH THE ESTABLISHED VISUAL MINIMA CRITERIA AND HIS INCORRECT ISSUANCE OF A VISUAL APPROACH TO AN ARRIVING AIRCRAFT.

Full Narrative

AS PIPER PA-31T, N484SC, WAS ON AN IFR DEPARTURE FROM RWY 18 AT MERRIL C MEIGS ARPT, SWEARINGEN SA226T, N600TA WAS ON AN IFR ARRIVAL. SUBSEQUENTLY, THE 2 ACFT CONVERGED APRX 3 MI SOUTH OF THE ARPT. THE CREW OF N484SC SAW N600TA & TURNED TO MAINTAIN SEPARATION. THE PASSING DISTANCE WAS ESTIMATED TO BE ABOUT 2000 FT. AN INVESTIGATION REVEALED THAT AS N600TA WAS ARRIVING, THE SOUTH SATELLITE SECTOR #1 CONTROLLER (CTLR) AT CHICAGO O'HARE TRACON HAD CLRD THE CREW TO DSCND & MAINTAIN 2000 FT. WHEN THEY (N600TA) ADVISED THAT MEIGS WAS IN SIGHT, THE SECTOR #1 CTLR CLRD THEM FOR A VISUAL APCH & TOLD THEM TO CONTACT MEIGS TOWER. AT ABOUT THAT TIME, THE SOUTH SATELLITE SECTOR #3 CTLR AT TRACON WAS IN CONTACT WITH MEIGS TOWER TO PROVIDE INFO ABOUT N600TA CONCERNING ANOTHER MATTER & HAD RELEASED N484SC FOR A SOUTH- BOUND DEPARTURE. WHEN THE SECTOR #3 CTLR PROVIDED THE RELEASE, HE WAS UNAWARE N600TA HAD BEEN CLRD FOR A VISUAL APCH. WHEN N600TA CONTACTED MEIGS TOWER, THE MEIGS TOWER CTLR THOUGHT IT WAS ON A VFR ARRIVAL. VIS RESTRICTED BY FOG & HAZE.

Flight

Event TypeIncident
Event Time17:42 CST
Nearest AirportMEIGS (0nm N)
Runway0
Runway Length0
Runway Width0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftSwearingen SA226T
Tail NumberN600TA
Aircraft CategoryAir
Operating RulePart 91
Engines2
Engine TypeTurboprop
Engine DetailsGarrett · TPE-331 · Turboprop · 840 | P&W · PT6A · Turboprop · 620
Seats22

People & Injuries

Injury SummaryNo injuries (17 uninjured)
Fatal0
Serious0
Minor0
Uninjured17
Total17
Crew 1Age 37 · First Class
Crew 2Age 41 · Second Class

Conditions

ConditionsVMC
LightDusk
Wind120° @ 8 kt
Visibility3 sm
CeilingNone
Temperature / Dew Point43 C / 34 C
Altimeter30.00 inHg
Observation Time16:45
Weather SourceWFAC

Appendix: Source Data