A B727 flight crew did not change CDI to ILS approach mode and failed to intercept the localizer on ...

Attributes
ACN	439270
Time
Date	199906
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mia.airport
State Reference	FL
Altitude	msl single value : 4000
Aircraft 1
Controlling Facilities	tracon : mia.tracon
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 9l
Flight Phase	descent : approach
Route In Use	approach : instrument precision
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
ASRS Report	439270
Person 2
Affiliation	company : air carrier
Function	flight crew : captain
Qualification	pilot : atp
ASRS Report	439269
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance flight crew : returned to intended or assigned course
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Descending on approach to mia runway 9R, we were given a change to runway 9L. During frequency change, captain changed VOR/ILS to runway 9L on #1. I changed #2 to runway 9L ILS and verified idents on both. When I looked back to flight display, captain appeared to be on course, but my display showed ILS course to left of us. Simultaneously, approach asked us to verify we were on the localizer to runway 9L. We responded yes, while sorting out the discrepancy. Flight engineer noted captain's radar/navigation switch was still in navigation mode. Captain returned to navigation mode, and displays agreed. We followed new intercept heading given by approach back to runway 9L localizer and completed approach without incident or traffic conflict.

Original NASA ASRS Text

Title: A B727 FLC DID NOT CHANGE CDI TO ILS APCH MODE AND FAILED TO INTERCEPT THE LOC ON APCH TO MIA.

Narrative: DSNDING ON APCH TO MIA RWY 9R, WE WERE GIVEN A CHANGE TO RWY 9L. DURING FREQ CHANGE, CAPT CHANGED VOR/ILS TO RWY 9L ON #1. I CHANGED #2 TO RWY 9L ILS AND VERIFIED IDENTS ON BOTH. WHEN I LOOKED BACK TO FLT DISPLAY, CAPT APPEARED TO BE ON COURSE, BUT MY DISPLAY SHOWED ILS COURSE TO L OF US. SIMULTANEOUSLY, APCH ASKED US TO VERIFY WE WERE ON THE LOC TO RWY 9L. WE RESPONDED YES, WHILE SORTING OUT THE DISCREPANCY. FE NOTED CAPT'S RADAR/NAV SWITCH WAS STILL IN NAV MODE. CAPT RETURNED TO NAV MODE, AND DISPLAYS AGREED. WE FOLLOWED NEW INTERCEPT HDG GIVEN BY APCH BACK TO RWY 9L LOC AND COMPLETED APCH WITHOUT INCIDENT OR TFC CONFLICT.

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.

A B727 flight crew did not change CDI to ILS approach mode and failed to intercept the localizer on approach to mia.