Approach controller vectoring a MD80 to follow another MD80 on the ILS runway 04R at ewr forgot to tell the reporter that his 090 degree was to take him through the localizer and got a TCASII RA at the same time the controller assigned him a new heading for spacing. Less than standard separation occurred.

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Attributes
ACN	353977
Time
Date	199611
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ewr
State Reference	NJ
Altitude	msl bound lower : 3700 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	cruise other descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent : approach descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 100 flight time total : 12000 flight time type : 4000
ASRS Report	353977
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 0 vertical : 700
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Arrived over rbv at 8000 ft. Approach control was radar vectoring our flight. We had been given a heading and an altitude of 4000 ft. Our next clearance was to turn right to 070 degrees to intercept the localizer runway 04R at ewr. Our next clearance was to turn right to 090 degrees and intercept. Then we were given a descent to 3000 ft. We intercepted the localizer and started our descent, at approximately 3700 ft TCASII gave an RA. Within seconds the controller told us to turn right to a heading of 090 degrees, we stayed on that heading for a short time and descended to 3000 ft. Then we were given a left turn to reintercept the localizer and descend to 2000 ft and then cleared for the approach. The controller failed to tell us that when we were given the original heading of 090 degrees that this was now a vector through the localizer runway 04R at ewr. When we intercepted the localizer the first time and started our descent, there was a conflict with another aircraft below us.

Original NASA ASRS Text

Title: APCH CTLR VECTORING A MD80 TO FOLLOW ANOTHER MD80 ON THE ILS RWY 04R AT EWR FORGOT TO TELL THE RPTR THAT HIS 090 DEG WAS TO TAKE HIM THROUGH THE LOC AND GOT A TCASII RA AT THE SAME TIME THE CTLR ASSIGNED HIM A NEW HEADING FOR SPACING. LTSS OCCURRED.

Narrative: ARRIVED OVER RBV AT 8000 FT. APCH CTL WAS RADAR VECTORING OUR FLT. WE HAD BEEN GIVEN A HEADING AND AN ALT OF 4000 FT. OUR NEXT CLRNC WAS TO TURN R TO 070 DEGS TO INTERCEPT THE LOC RWY 04R AT EWR. OUR NEXT CLRNC WAS TO TURN R TO 090 DEGS AND INTERCEPT. THEN WE WERE GIVEN A DSCNT TO 3000 FT. WE INTERCEPTED THE LOC AND STARTED OUR DSCNT, AT APPROX 3700 FT TCASII GAVE AN RA. WITHIN SECONDS THE CTLR TOLD US TO TURN R TO A HDG OF 090 DEGS, WE STAYED ON THAT HEADING FOR A SHORT TIME AND DSNDED TO 3000 FT. THEN WE WERE GIVEN A L TURN TO REINTERCEPT THE LOC AND DSND TO 2000 FT AND THEN CLRED FOR THE APCH. THE CTLR FAILED TO TELL US THAT WHEN WE WERE GIVEN THE ORIGINAL HDG OF 090 DEGS THAT THIS WAS NOW A VECTOR THROUGH THE LOC RWY 04R AT EWR. WHEN WE INTERCEPTED THE LOC THE FIRST TIME AND STARTED OUR DSCNT, THERE WAS A CONFLICT WITH ANOTHER ACFT BELOW US.

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.