Serious incident Short 360-300 N364MQ,
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ASN Wikibase Occurrence # 362350
 
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Date:Sunday 7 March 1993
Time:09:02 LT
Type:Silhouette image of generic SH36 model; specific model in this crash may look slightly different    
Short 360-300
Owner/operator:Simmons Airlines
Registration: N364MQ
MSN: SH3619
Engine model:P&W PT6A
Fatalities:Fatalities: 0 / Occupants: 3
Aircraft damage: None
Category:Serious incident
Location:Chicago, IL -   United States of America
Phase: Approach
Nature:Unknown
Departure airport:Bloomington, IL (KBMI)
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
LOSSES OF SEPARATION OCCURRED BETWEEN 8 OF 9 AIRPLANES ON THE ILS APPROACH, AND OCCURRED BOTH INSIDE AND OUTSIDE OF THE OUTER MARKER. THE LOCAL CONTROLLER WAS AWARE THAT THE SEPARATION BETWEEN THE AIRPLANES WAS 'TIGHT' WHEN HANDED OFF TO HIM BY TRACON. HE ATTEMPTED REMEDIAL ACTION BY NOTIFYING HIS SUPERVISOR AND ISSUING MISSED APPROACHES TO TWO OF THE AIRPLANES.

Probable Cause: FAILURE OF THE APPROACH AND LOCAL CONTROLLERS TO MAINTAIN IFR SEPARATION STANDARDS BETWEEN ALL THE AIRPLANES ON THE APPROACH.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: CHI93IA115
Status: Investigation completed
Duration: 1 year and 9 months
Download report: Final report

Sources:

NTSB CHI93IA115

Revision history:

Date/timeContributorUpdates
17-Mar-2024 20:25 ASN Update Bot Added

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