An EMB120 first officer inadvertently flies through the localizer of ILS runway 9 at iah, tx.

Attributes
ACN	504400
Time
Date	200103
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : iah.airport
State Reference	TX
Altitude	msl single value : 2000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : i90.tracon
Operator	common carrier : air carrier
Make Model Name	Brasilia EMB-120 All Series
Operating Under FAR Part	Part 119
Navigation In Use	ils localizer & glide slope : 09
Flight Phase	descent : intermediate altitude
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 : cfi pilot : atp
Experience	flight time last 90 days : 40 flight time total : 2025 flight time type : 40
ASRS Report	504400
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance controller : issued advisory
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Weather Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were supposed to be on the gland 8 arrival and were told to expect ILS runway 9. We were deviating north of the humble 234 degree radial due to thunderstorms. We were cleared for the ILS runway 9. The first officer was flying. ATC gave us a 060 degree heading (I believe) to intercept the localizer. I positively idented the localizer frequency on both navs and the inbound course on both sides. I noticed the localizer needle coming alive and called it and the first officer acknowledged. I then went off of communication #1 to tell the flight attendant to be seated for landing. When I got back on communication #1, we were full scale deflection to the north of the localizer course. ATC then asked us if we were following the localizer for runway 8 and not for runway 9. I told him that we did have the localizer for runway 9 tuned in the navigation. ATC then gave us a 110 degree heading to reintercept the localizer. The first officer at this time told me that he had the wrong inbound course on his ehsi and that was why he flew through the localizer. Once we were back on the localizer, we were told to contact tower and landed without any other problems. As a captain, I should have been more aware of us flying through the localizer instead of notifying the flight attendant to be seated. I also should have crosschecked the first officer's inbound course on his ehsi during the approach checklist. From now on, I will brief the first officer to ensure that both of us do indeed have the correct inbound course on each of our ehsi's.

Original NASA ASRS Text

Title: AN EMB120 FO INADVERTENTLY FLIES THROUGH THE LOC OF ILS RWY 9 AT IAH, TX.

Narrative: WE WERE SUPPOSED TO BE ON THE GLAND 8 ARR AND WERE TOLD TO EXPECT ILS RWY 9. WE WERE DEVIATING N OF THE HUMBLE 234 DEG RADIAL DUE TO TSTMS. WE WERE CLRED FOR THE ILS RWY 9. THE FO WAS FLYING. ATC GAVE US A 060 DEG HDG (I BELIEVE) TO INTERCEPT THE LOC. I POSITIVELY IDENTED THE LOC FREQ ON BOTH NAVS AND THE INBOUND COURSE ON BOTH SIDES. I NOTICED THE LOC NEEDLE COMING ALIVE AND CALLED IT AND THE FO ACKNOWLEDGED. I THEN WENT OFF OF COM #1 TO TELL THE FLT ATTENDANT TO BE SEATED FOR LNDG. WHEN I GOT BACK ON COM #1, WE WERE FULL SCALE DEFLECTION TO THE N OF THE LOC COURSE. ATC THEN ASKED US IF WE WERE FOLLOWING THE LOC FOR RWY 8 AND NOT FOR RWY 9. I TOLD HIM THAT WE DID HAVE THE LOC FOR RWY 9 TUNED IN THE NAV. ATC THEN GAVE US A 110 DEG HDG TO REINTERCEPT THE LOC. THE FO AT THIS TIME TOLD ME THAT HE HAD THE WRONG INBOUND COURSE ON HIS EHSI AND THAT WAS WHY HE FLEW THROUGH THE LOC. ONCE WE WERE BACK ON THE LOC, WE WERE TOLD TO CONTACT TWR AND LANDED WITHOUT ANY OTHER PROBS. AS A CAPT, I SHOULD HAVE BEEN MORE AWARE OF US FLYING THROUGH THE LOC INSTEAD OF NOTIFYING THE FLT ATTENDANT TO BE SEATED. I ALSO SHOULD HAVE XCHKED THE FO'S INBOUND COURSE ON HIS EHSI DURING THE APCH CHKLIST. FROM NOW ON, I WILL BRIEF THE FO TO ENSURE THAT BOTH OF US DO INDEED HAVE THE CORRECT INBOUND COURSE ON EACH OF OUR EHSI'S.

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.