Missed approach due to an improper heading to capture the ILS localizer course.

Attributes
ACN	218098
Time
Date	199208
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cvg
State Reference	OH
Altitude	agl bound lower : 1500 agl bound upper : 1500
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : cvg
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent : approach landing : missed approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 160 flight time total : 20000 flight time type : 40
ASRS Report	218098
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 150 flight time total : 8000 flight time type : 250
ASRS Report	218321
Events
Anomaly	non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

ILS receiver showed us continually right of course and necessitated a go around. Executed from 18L at about 1500 ft AGL. Subsequent approach to same runway uneventful. Callback conversation with reporter revealed the following information: reporter stated in callback that he did not know why the aircraft did not capture the ILS, but feels that it could have been due to an insufficient heading to intercept the localizer course. He also wonders if the ILS course heading needs to be selected since it was not corresponding during the first approach. He further stated that ATC stated that they had a possible problem with the ground transmitter. However, there were no difficulties experienced during the second approach.

Original NASA ASRS Text

Title: MISSED APCH DUE TO AN IMPROPER HDG TO CAPTURE THE ILS LOC COURSE.

Narrative: ILS RECEIVER SHOWED US CONTINUALLY R OF COURSE AND NECESSITATED A GAR. EXECUTED FROM 18L AT ABOUT 1500 FT AGL. SUBSEQUENT APCH TO SAME RWY UNEVENTFUL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED IN CALLBACK THAT HE DID NOT KNOW WHY THE ACFT DID NOT CAPTURE THE ILS, BUT FEELS THAT IT COULD HAVE BEEN DUE TO AN INSUFFICIENT HDG TO INTERCEPT THE LOC COURSE. HE ALSO WONDERS IF THE ILS COURSE HDG NEEDS TO BE SELECTED SINCE IT WAS NOT CORRESPONDING DURING THE FIRST APCH. HE FURTHER STATED THAT ATC STATED THAT THEY HAD A POSSIBLE PROBLEM WITH THE GND XMITTER. HOWEVER, THERE WERE NO DIFFICULTIES EXPERIENCED DURING THE SECOND APCH.

Data retrieved from NASA's ASRS site as of July 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.