Air carrier X had less than standard heavy jet separation from air carrier Y. System error.

Attributes
ACN	281564
Time
Date	199408
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ewr
State Reference	NJ
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90 tower : ewr
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
ASRS Report	281564
Person 2
Affiliation	government : faa
Function	other personnel other
Qualification	controller : radar
ASRS Report	279126
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 21000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Inter Facility Coordination Failure

Narrative:

7110.65H 5-124 states approach is responsible for final separation, and we also have letter with N90 say the same. 7110.65H 5-72-B states aircraft on an instrument approach by heavy behind heavy-4 mi. As you can see N90 gives us 3 1/2 mi behind a heavy jet, and doesn't even worry about it. This is an everyday problem. Supplemental information from acn 279126: once again while both aircraft on ILS approach to runway 4R, N90 fails to give us 5 mi behind the A300. This happens each and every day. Supplemental information from acn 279124: air carrier X on final behind air carrier Y a heavy A300. Ny TRACON (N90) final controller switched air carrier X to newark tower with 4 1/2 mi separation and decreasing. Local controller initiated a go around for air carrier X. Supervisor advised. Daily log reflects air carrier X decreasing separation at XX05Z. When local initiated go around air carrier X was 4 mi behind air carrier Y.

Original NASA ASRS Text

Title: ACR X HAD LESS THAN STANDARD HVY JET SEPARATION FROM ACR Y. SYS ERROR.

Narrative: 7110.65H 5-124 STATES APCH IS RESPONSIBLE FOR FINAL SEPARATION, AND WE ALSO HAVE LETTER WITH N90 SAY THE SAME. 7110.65H 5-72-B STATES ACFT ON AN INST APCH BY HVY BEHIND HVY-4 MI. AS YOU CAN SEE N90 GIVES US 3 1/2 MI BEHIND A HVY JET, AND DOESN'T EVEN WORRY ABOUT IT. THIS IS AN EVERYDAY PROB. SUPPLEMENTAL INFO FROM ACN 279126: ONCE AGAIN WHILE BOTH ACFT ON ILS APCH TO RWY 4R, N90 FAILS TO GIVE US 5 MI BEHIND THE A300. THIS HAPPENS EACH AND EVERY DAY. SUPPLEMENTAL INFO FROM ACN 279124: ACR X ON FINAL BEHIND ACR Y A HVY A300. NY TRACON (N90) FINAL CTLR SWITCHED ACR X TO NEWARK TWR WITH 4 1/2 MI SEPARATION AND DECREASING. LCL CTLR INITIATED A GAR FOR ACR X. SUPVR ADVISED. DAILY LOG REFLECTS ACR X DECREASING SEPARATION AT XX05Z. WHEN LCL INITIATED GAR ACR X WAS 4 MI BEHIND ACR Y.

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.