Close proximity air carrier medium large transport and unk on ILS approach to bdl.

Attributes
ACN	86873
Time
Date	198805
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bdl
State Reference	CT
Altitude	msl bound lower : 5000 msl bound upper : 5600
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : bdl
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 9000 flight time type : 1500
ASRS Report	86873
Person 2
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 3000 vertical : 600
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Approach said to slow to 210K. We asked for a lower altitude, approach said after slowing, descend to 5000'. Approach later said he would 'box us in from the north side'. I saw another aircraft coming from the left, (who was on localizer at 5000) I asked approach several times about this other aircraft, but he was too busy to respond. Once he did respond he abruptly said maintain 6000'.we were at 5600' descending and climbed back to 6000'. My guess is that most aircraft were descending to 5000 and when giving us that clearance the controller did not expect to have to send us through the localizer.

Original NASA ASRS Text

Title: CLOSE PROX ACR MLG AND UNK ON ILS APCH TO BDL.

Narrative: APCH SAID TO SLOW TO 210K. WE ASKED FOR A LOWER ALT, APCH SAID AFTER SLOWING, DESCEND TO 5000'. APCH LATER SAID HE WOULD 'BOX US IN FROM THE NORTH SIDE'. I SAW ANOTHER ACFT COMING FROM THE LEFT, (WHO WAS ON LOC AT 5000) I ASKED APCH SEVERAL TIMES ABOUT THIS OTHER ACFT, BUT HE WAS TOO BUSY TO RESPOND. ONCE HE DID RESPOND HE ABRUPTLY SAID MAINTAIN 6000'.WE WERE AT 5600' DESCENDING AND CLIMBED BACK TO 6000'. MY GUESS IS THAT MOST ACFT WERE DESCENDING TO 5000 AND WHEN GIVING US THAT CLRNC THE CTLR DID NOT EXPECT TO HAVE TO SEND US THROUGH THE LOC.

Data retrieved from NASA's ASRS site as of August 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.