An FK100 flight crew overshoots their turn onto the localizer for ILS runway 26L at iah, tx.

Attributes
ACN	457180
Time
Date	199912
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : iah.airport
State Reference	TX
Altitude	msl bound lower : 2000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : i90.tracon
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 26l
Flight Phase	descent : vacating altitude descent : approach
Route In Use	approach : instrument precision arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	457180
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : multi engine pilot : instrument
ASRS Report	457004
Events
Anomaly	conflict : airborne less severe non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	atc equipment other atc equipment : radar aircraft equipment : tcas other controllera
Resolutory Action	controller : issued advisory controller : separated traffic
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Airspace Structure ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Iah airport, 3000 ft. Iah approach. 5 mi prior to nixin OM for ILS runway 26L on visual to runway 26 and descending to 2000 ft. At nixin, controller called crossing localizer and corrected back. Parallel traffic was in sight the entire time. Never received a localizer cross (swing) in the cockpit. Spoke with controller on the ground and he mentioned no problem. I think this problem resulted in allowing myself to be set up on a 90 degree intercept with an aircraft also on the parallel runway. Although we never came close due to altitude and lateral displacement, it set up a potential situation. Supplemental information from acn 457004: TCASII alerted briefly while correcting back to course centerline. Had visual separation with parallel traffic at all times while TCASII RA was activated. Greater emphasis on runway and localizer alignment and orientation is the result of this.

Original NASA ASRS Text

Title: AN FK100 FLC OVERSHOOTS THEIR TURN ONTO THE LOC FOR ILS RWY 26L AT IAH, TX.

Narrative: IAH ARPT, 3000 FT. IAH APCH. 5 MI PRIOR TO NIXIN OM FOR ILS RWY 26L ON VISUAL TO RWY 26 AND DSNDING TO 2000 FT. AT NIXIN, CTLR CALLED XING LOC AND CORRECTED BACK. PARALLEL TFC WAS IN SIGHT THE ENTIRE TIME. NEVER RECEIVED A LOC CROSS (SWING) IN THE COCKPIT. SPOKE WITH CTLR ON THE GND AND HE MENTIONED NO PROB. I THINK THIS PROB RESULTED IN ALLOWING MYSELF TO BE SET UP ON A 90 DEG INTERCEPT WITH AN ACFT ALSO ON THE PARALLEL RWY. ALTHOUGH WE NEVER CAME CLOSE DUE TO ALT AND LATERAL DISPLACEMENT, IT SET UP A POTENTIAL SIT. SUPPLEMENTAL INFO FROM ACN 457004: TCASII ALERTED BRIEFLY WHILE CORRECTING BACK TO COURSE CTRLINE. HAD VISUAL SEPARATION WITH PARALLEL TFC AT ALL TIMES WHILE TCASII RA WAS ACTIVATED. GREATER EMPHASIS ON RWY AND LOC ALIGNMENT AND ORIENTATION IS THE RESULT OF THIS.

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.