A boeing 757 flight crew was turned on final by bos TRACON and asked to maneuver for spacing by bos ...

Attributes
ACN	439525
Time
Date	199906
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bos.airport
State Reference	MA
Altitude	msl single value : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : bos.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 : 33l other
Flight Phase	descent : approach
Route In Use	approach : instrument precision approach : visual arrival : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : bos.tower
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	descent : approach
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi pilot : flight engineer pilot : instrument pilot : multi engine pilot : commercial
Experience	flight time last 90 days : 160 flight time total : 8500 flight time type : 1500
ASRS Report	439525
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory flight crew : took precautionary avoidance action
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Inter Facility Coordination Failure

Narrative:

After being held for 15 mins, we were given a descent for the approach to runway 33L in boston. Another aircraft on approach frequency asked how long final was going to be, and the response was 20 NM. We were then surprised when at 8 NM from the field on downwind we were given a turn, cleared direct to the FAF and cleared for the visual approach. I switched to tower frequency and waited to get a word in. I checked in at just about the FAF and the tower's response was frantic, telling us that we had traffic ahead at 3 mi and we were overtaking by 50 KTS and that we needed to do s-turns to the west if we were to land this pass. This was the first we heard of or saw of this traffic. We made the s-turns and landed safely.

Original NASA ASRS Text

Title: A BOEING 757 FLC WAS TURNED ON FINAL BY BOS TRACON AND ASKED TO MANEUVER FOR SPACING BY BOS TWR.

Narrative: AFTER BEING HELD FOR 15 MINS, WE WERE GIVEN A DSCNT FOR THE APCH TO RWY 33L IN BOSTON. ANOTHER ACFT ON APCH FREQ ASKED HOW LONG FINAL WAS GOING TO BE, AND THE RESPONSE WAS 20 NM. WE WERE THEN SURPRISED WHEN AT 8 NM FROM THE FIELD ON DOWNWIND WE WERE GIVEN A TURN, CLRED DIRECT TO THE FAF AND CLRED FOR THE VISUAL APCH. I SWITCHED TO TWR FREQ AND WAITED TO GET A WORD IN. I CHKED IN AT JUST ABOUT THE FAF AND THE TWR'S RESPONSE WAS FRANTIC, TELLING US THAT WE HAD TFC AHEAD AT 3 MI AND WE WERE OVERTAKING BY 50 KTS AND THAT WE NEEDED TO DO S-TURNS TO THE W IF WE WERE TO LAND THIS PASS. THIS WAS THE FIRST WE HEARD OF OR SAW OF THIS TFC. WE MADE THE S-TURNS AND LANDED SAFELY.

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 boeing 757 flight crew was turned on final by bos TRACON and asked to maneuver for spacing by bos tower.