A320 crew was spaced 2 mi behind a B757 in D01 class B airspace.

Attributes
ACN	547100
Time
Date	200205
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	intersection : fronz
State Reference	CO
Altitude	msl single value : 9000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : d01.tracon tower : den.tower
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 35r other
Flight Phase	descent : approach
Route In Use	approach : instrument precision
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : d01.tracon tower : den.tower
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 35r other
Flight Phase	descent : approach
Route In Use	approach : instrument precision
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	547100
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : company policies non adherence : far non adherence : published procedure non adherence : required legal separation other anomaly other
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	none taken : insufficient time other
Consequence	faa : investigated faa : reviewed incident with flight crew other
Miss Distance	horizontal : 12000
Supplementary
Problem Areas	FAA ATC Human Performance Flight Crew Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error
Situations
ATC Facility	procedure or policy : den.tower

Narrative:

We were already high (+2 dots) because we were held high by approach when the final controller had us slow and told us to follow a B757. When the B757 rolled out on the localizer, we were 2 mi or less in trail. We were already on the localizer 4-5 mi outside fronz. I wanted to go around, but the captain said no, to continue. I had to do some pretty serious s-turns to slow to 180 KTS (by ATC) and descend. There was no way I could build distance between us and the B757. I got on the glide path and near speed by fronz, however, we still almost went around because the B757 cleared the first high speed when we were in the flare. I called approach and talked to mr X who said no, that we were 4-5 mi behind the B757. Bullshit! I did not like final vectoring a B757 in front of us at 2 mi, especially when I'm 4-5 mi from the FAF and high and fast. I would like to have gone around, but the captain wanted to continue, and I certainly don't like an ATC system who wants to pooh-pah their screw-ups.

Original NASA ASRS Text

Title: A320 CREW WAS SPACED 2 MI BEHIND A B757 IN D01 CLASS B AIRSPACE.

Narrative: WE WERE ALREADY HIGH (+2 DOTS) BECAUSE WE WERE HELD HIGH BY APCH WHEN THE FINAL CTLR HAD US SLOW AND TOLD US TO FOLLOW A B757. WHEN THE B757 ROLLED OUT ON THE LOC, WE WERE 2 MI OR LESS IN TRAIL. WE WERE ALREADY ON THE LOC 4-5 MI OUTSIDE FRONZ. I WANTED TO GO AROUND, BUT THE CAPT SAID NO, TO CONTINUE. I HAD TO DO SOME PRETTY SERIOUS S-TURNS TO SLOW TO 180 KTS (BY ATC) AND DSND. THERE WAS NO WAY I COULD BUILD DISTANCE BTWN US AND THE B757. I GOT ON THE GLIDE PATH AND NEAR SPD BY FRONZ, HOWEVER, WE STILL ALMOST WENT AROUND BECAUSE THE B757 CLRED THE FIRST HIGH SPD WHEN WE WERE IN THE FLARE. I CALLED APCH AND TALKED TO MR X WHO SAID NO, THAT WE WERE 4-5 MI BEHIND THE B757. BULLSHIT! I DID NOT LIKE FINAL VECTORING A B757 IN FRONT OF US AT 2 MI, ESPECIALLY WHEN I'M 4-5 MI FROM THE FAF AND HIGH AND FAST. I WOULD LIKE TO HAVE GONE AROUND, BUT THE CAPT WANTED TO CONTINUE, AND I CERTAINLY DON'T LIKE AN ATC SYS WHO WANTS TO POOH-PAH THEIR SCREW-UPS.

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.