BE20 crew had ILS navigation failure on approach to teb.

Attributes
ACN	531580
Time
Date	200111
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : teb.airport
State Reference	NJ
Altitude	agl bound lower : 300 agl bound upper : 400
Environment
Flight Conditions	IMC
Weather Elements	Fog Rain
Light	Daylight
Aircraft 1
Controlling Facilities	tower : teb.tower
Operator	general aviation : personal
Make Model Name	Super King Air 200 HDC
Operating Under FAR Part	Part 91
Route In Use	approach : straight in
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : commercial pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 80 flight time total : 6159 flight time type : 813
ASRS Report	531580
Person 2
Affiliation	other
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical inflight encounter : weather other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance

Narrative:

The crew was in second aircraft for this mission. IMC prevailed as ILS was set up on both navigation radios. It was noted that localizer frequency was not being received on right side and this was side of PF. An effort was made for PF to fly approach using left instruments. After passing FAF, the approach was managed by the previous PNF in left seat. In the exchange of PF, the localizer course was not tracked well and when approach lights were idented, the aircraft was to left of centerline and turn to intercept centerline resulted in overshoot before being able to land safely though not a thing of beauty! Lesson: do not attempt an approach in low IMC with less than every possible optimal condition! In such a situation, execute a missed approach, get everything sorted in a hold and attempt again! The attempt by initial PF to do the approach under the existing conditions was not a wise decision.

Original NASA ASRS Text

Title: BE20 CREW HAD ILS NAV FAILURE ON APCH TO TEB.

Narrative: THE CREW WAS IN SECOND ACFT FOR THIS MISSION. IMC PREVAILED AS ILS WAS SET UP ON BOTH NAV RADIOS. IT WAS NOTED THAT LOC FREQ WAS NOT BEING RECEIVED ON R SIDE AND THIS WAS SIDE OF PF. AN EFFORT WAS MADE FOR PF TO FLY APCH USING L INSTS. AFTER PASSING FAF, THE APCH WAS MANAGED BY THE PREVIOUS PNF IN L SEAT. IN THE EXCHANGE OF PF, THE LOC COURSE WAS NOT TRACKED WELL AND WHEN APCH LIGHTS WERE IDENTED, THE ACFT WAS TO L OF CTRLINE AND TURN TO INTERCEPT CTRLINE RESULTED IN OVERSHOOT BEFORE BEING ABLE TO LAND SAFELY THOUGH NOT A THING OF BEAUTY! LESSON: DO NOT ATTEMPT AN APCH IN LOW IMC WITH LESS THAN EVERY POSSIBLE OPTIMAL CONDITION! IN SUCH A SIT, EXECUTE A MISSED APCH, GET EVERYTHING SORTED IN A HOLD AND ATTEMPT AGAIN! THE ATTEMPT BY INITIAL PF TO DO THE APCH UNDER THE EXISTING CONDITIONS WAS NOT A WISE DECISION.

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.