<< >> NASA ASRS Report 106868, March 1989

Aircraft on visual approach for runway 14R overflew the final approach and conflicted with another aircraft for runway 14L.

Attributes
ACN	106868
Time
Date	198903
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : iah
State Reference	TX
Altitude	msl bound lower : 1800 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : iah
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	descent : approach
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	landing other
Route In Use	arrival other enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 9500 flight time type : 8200
ASRS Report	106868
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation non adherence : clearance non adherence : published procedure
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 1000
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Pilot Deviation Operational Error

Narrative:

Approaching the OM I noticed another aircraft at about my 2 O'clock position, 2 mi range, 2000' higher than we were, heading directly at us and descending. The other aircraft then turned and placed itself over our aircraft and slightly ahead of us, about 100' higher than we were and it continued its descent. We deviated down for the G/south and off the localizer to the right. The other aircraft was then broken off of the approach 90 degrees to the right and we continued the approach and landed. After landing I talked to the approach control supervisor who apologized for the incident and told me that there was controller training in progress and that the individual handling both of our aircraft would be disciplined. What had happened was that the other aircraft, an medium large transport, had been cleared for a visibility approach to runway 14R to follow traffic on final. The problem was that the controller turned the medium large transport onto a collision course with us. The medium large transport did stop the descent at 3000' while we were deviation below the G/south at about 1800' in anticipation of a rapid evasive maneuver if it became necessary. At no time during this entire incident was the other aircraft out of our sight.

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Original NASA ASRS Text

Title: ACFT ON VISUAL APCH FOR RWY 14R OVERFLEW THE FINAL APCH AND CONFLICTED WITH ANOTHER ACFT FOR RWY 14L.

Narrative: APCHING THE OM I NOTICED ANOTHER ACFT AT ABOUT MY 2 O'CLOCK POS, 2 MI RANGE, 2000' HIGHER THAN WE WERE, HDG DIRECTLY AT US AND DSNDING. THE OTHER ACFT THEN TURNED AND PLACED ITSELF OVER OUR ACFT AND SLIGHTLY AHEAD OF US, ABOUT 100' HIGHER THAN WE WERE AND IT CONTINUED ITS DSCNT. WE DEVIATED DOWN FOR THE G/S AND OFF THE LOC TO THE RIGHT. THE OTHER ACFT WAS THEN BROKEN OFF OF THE APCH 90 DEGS TO THE RIGHT AND WE CONTINUED THE APCH AND LANDED. AFTER LNDG I TALKED TO THE APCH CTL SUPVR WHO APOLOGIZED FOR THE INCIDENT AND TOLD ME THAT THERE WAS CTLR TRNING IN PROGRESS AND THAT THE INDIVIDUAL HANDLING BOTH OF OUR ACFT WOULD BE DISCIPLINED. WHAT HAD HAPPENED WAS THAT THE OTHER ACFT, AN MLG, HAD BEEN CLRED FOR A VIS APCH TO RWY 14R TO FOLLOW TFC ON FINAL. THE PROB WAS THAT THE CTLR TURNED THE MLG ONTO A COLLISION COURSE WITH US. THE MLG DID STOP THE DSCNT AT 3000' WHILE WE WERE DEVIATION BELOW THE G/S AT ABOUT 1800' IN ANTICIPATION OF A RAPID EVASIVE MANEUVER IF IT BECAME NECESSARY. AT NO TIME DURING THIS ENTIRE INCIDENT WAS THE OTHER ACFT OUT OF OUR SIGHT.

Data retrieved from NASA's ASRS site as of August 2007 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.