A B737-300 flight crew has an near midair collision with a climbing crossing lear jet that was not pointed out as traffic by departure controller at phl, PA.

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Attributes
ACN	479859
Time
Date	200007
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : cyn.vor
State Reference	NJ
Altitude	msl single value : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : phl.tracon
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	other other vortac
Flight Phase	climbout : vacating altitude
Route In Use	departure : on vectors enroute : direct
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zdc.artcc
Operator	other
Make Model Name	Gates Learjet Corp Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Navigation In Use	other vortac
Flight Phase	climbout : vacating altitude
Route In Use	departure : vfr enroute : direct
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 200 flight time total : 13000 flight time type : 3000
ASRS Report	479859
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 15000 flight time type : 8000
ASRS Report	480075
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : required legal separation non adherence : published procedure non adherence : far other anomaly other
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action other
Miss Distance	horizontal : 400 vertical : 100
Supplementary
Problem Areas	Aircraft ATC Human Performance Flight Crew Human Performance Airspace Structure
Primary Problem	Flight Crew Human Performance

Narrative:

Departed phl en route to pwn, initial altitude 5000 ft. After change over to departure control, cleared to 6000 ft due to traffic at 6500 ft at 10 O'clock position. After passing 10 O'clock position traffic, we were cleared direct ditch intersection, climb to 10000 ft. During our turn to ditch intersection I heard ATC ask another aircraft if they had a B737, in sight. At that time the TCASII gave a TA and then an RA to descend, and then to climb, climb now. As the captain started a descent, I saw the aircraft at 12 O'clock position, and below us. The captain initiated a climb, the other aircraft passed by our right side approximately 400 ft away and 100 ft below. I reported to departure we were responding to an RA and asked 'what that was all about?' he paused and then gave us frequency change to center without responding. Supplemental information from acn 480075: I observed traffic on TCASII only at our 4 O'clock position, 500 ft above our altitude approximately 5 mi away, and ATC asking if they had a B737 in sight. An aircraft answered 'traffic in sight.' just as we started our climb an RA was given to descend, descend. I started to comply with the RA and noticed the target at 11 O'clock position, and coming within the 2 mi ring (scale was set to 10 mi) still climbing and then TCASII changed to climb, climb. We never had a visual until the first officer idented it passing below traveling swbound.

Original NASA ASRS Text

Title: A B737-300 FLC HAS AN NMAC WITH A CLBING XING LEAR JET THAT WAS NOT POINTED OUT AS TFC BY DEP CTLR AT PHL, PA.

Narrative: DEPARTED PHL ENRTE TO PWN, INITIAL ALT 5000 FT. AFTER CHANGE OVER TO DEP CTL, CLRED TO 6000 FT DUE TO TFC AT 6500 FT AT 10 O'CLOCK POS. AFTER PASSING 10 O'CLOCK POS TFC, WE WERE CLRED DIRECT DITCH INTXN, CLB TO 10000 FT. DURING OUR TURN TO DITCH INTXN I HEARD ATC ASK ANOTHER ACFT IF THEY HAD A B737, IN SIGHT. AT THAT TIME THE TCASII GAVE A TA AND THEN AN RA TO DSND, AND THEN TO CLB, CLB NOW. AS THE CAPT STARTED A DSCNT, I SAW THE ACFT AT 12 O'CLOCK POS, AND BELOW US. THE CAPT INITIATED A CLB, THE OTHER ACFT PASSED BY OUR R SIDE APPROX 400 FT AWAY AND 100 FT BELOW. I RPTED TO DEP WE WERE RESPONDING TO AN RA AND ASKED 'WHAT THAT WAS ALL ABOUT?' HE PAUSED AND THEN GAVE US FREQ CHANGE TO CTR WITHOUT RESPONDING. SUPPLEMENTAL INFO FROM ACN 480075: I OBSERVED TFC ON TCASII ONLY AT OUR 4 O'CLOCK POS, 500 FT ABOVE OUR ALT APPROX 5 MI AWAY, AND ATC ASKING IF THEY HAD A B737 IN SIGHT. AN ACFT ANSWERED 'TFC IN SIGHT.' JUST AS WE STARTED OUR CLB AN RA WAS GIVEN TO DSND, DSND. I STARTED TO COMPLY WITH THE RA AND NOTICED THE TARGET AT 11 O'CLOCK POS, AND COMING WITHIN THE 2 MI RING (SCALE WAS SET TO 10 MI) STILL CLBING AND THEN TCASII CHANGED TO CLB, CLB. WE NEVER HAD A VISUAL UNTIL THE FO IDENTED IT PASSING BELOW TRAVELING SWBOUND.

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.