<< >> NASA ASRS Report 1572981, August 2018

Two B737 flight crews reported that a localizer overshoot and cloudy conditions resulted in the inability to maintain visual separation.

Attributes
ACN	1572981
Time
Date	201808
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Person 1
Function	First Officer Pilot Flying
Experience	Flight Crew Last 90 Days 270 Flight Crew Total 6308
Person 2
Function	Pilot Flying Captain
Experience	Flight Crew Last 90 Days 150 Flight Crew Total 10928 Flight Crew Type 8942
Events
Anomaly	Conflict Airborne Conflict Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types Inflight Event / Encounter Weather / Turbulence

Narrative:

On ILS to xxr we were instructed to maintain visual separation with the aircraft in front of us on ILS to xxl. He blew through his localizer and ours. We slowed to avoid. He reported responding to an RA. He corrected back to the south and went into a cloud deck. We reported loss of visual with him and were told to go around by ATC.

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Original NASA ASRS Text

Title: Two B737 flight crews reported that a localizer overshoot and cloudy conditions resulted in the inability to maintain visual separation.

Narrative: On ILS to XXR we were instructed to maintain visual separation with the aircraft in front of us on ILS to XXL. He blew through his localizer and ours. We slowed to avoid. He reported responding to an RA. He corrected back to the south and went into a cloud deck. We reported loss of visual with him and were told to go around by ATC.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.