Potential conflict airborne between air carrier-widebody transport and formation of five former MTR.

Attributes
ACN	92002
Time
Date	198808
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : jfk
State Reference	NY
Altitude	msl bound lower : 9500 msl bound upper : 9500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	arrival star : star enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	other
Make Model Name	Military Trainer
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 80 flight time total : 15000 flight time type : 1800
ASRS Report	92002
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	conflict : airborne less severe
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 1000 vertical : 1000
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

At approximately XA52Z, I was cruising at 11000' and 250 KTS, assigned. Approach cleared us to descend to 5000', heading 260 degrees for vectors to runway 31R ILS at jfk. At approximately XA54Z, approach advised eastbound traffic at 11 O'clock, unverified altitude 9500'. I immediately applied power and climbed from 9600 to 10500'. Approach then cleared us to climb to 10000' and we advised that we were maintaining 10500'. The first officer called traffic at 12 O'clock at about 9500'. A 5 ship formation of MTR's passed under us to the left at less than 1000'. In my judgement, the safest course of action was to initiate a climb. No abrupt maneuvers were required. The MTR's formation took no evasive action. Approach was advised of a near miss. Had the controller not advised us and had we not climbed, a near midair collision might have resulted.

Original NASA ASRS Text

Title: POTENTIAL CONFLICT AIRBORNE BETWEEN ACR-WDB AND FORMATION OF FIVE FORMER MTR.

Narrative: AT APPROX XA52Z, I WAS CRUISING AT 11000' AND 250 KTS, ASSIGNED. APCH CLRED US TO DSND TO 5000', HDG 260 DEGS FOR VECTORS TO RWY 31R ILS AT JFK. AT APPROX XA54Z, APCH ADVISED EBND TFC AT 11 O'CLOCK, UNVERIFIED ALT 9500'. I IMMEDIATELY APPLIED PWR AND CLBED FROM 9600 TO 10500'. APCH THEN CLRED US TO CLB TO 10000' AND WE ADVISED THAT WE WERE MAINTAINING 10500'. THE F/O CALLED TFC AT 12 O'CLOCK AT ABOUT 9500'. A 5 SHIP FORMATION OF MTR'S PASSED UNDER US TO THE LEFT AT LESS THAN 1000'. IN MY JUDGEMENT, THE SAFEST COURSE OF ACTION WAS TO INITIATE A CLB. NO ABRUPT MANEUVERS WERE REQUIRED. THE MTR'S FORMATION TOOK NO EVASIVE ACTION. APCH WAS ADVISED OF A NEAR MISS. HAD THE CTLR NOT ADVISED US AND HAD WE NOT CLBED, A NMAC MIGHT HAVE RESULTED.

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.