Flight crew of an medium large transport air carrier aircraft took evasive action in response to a T...

Attributes
ACN	245760
Time
Date	199306
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : dca
State Reference	DC
Altitude	msl bound lower : 14700 msl bound upper : 15000
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
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 : 6000 flight time type : 1200
ASRS Report	245760
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 300 vertical : 300
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

We were flight from bwi to roa. We were handed off from baltimore departure to ZDC. We were cleared to FL200. We were climbing out of 14500 ft when the TCASII sounded a TA -- traffic, traffic. Both the captain and I looked at the TCASII screen and noticed the intruder aircraft on the screen at 12 O'clock and approximately 5 mi. By then we were at 14700 ft and realized the intruder aircraft was at 15000 ft. Before the TCASII RA, the captain added full power, turned 5 degrees bank to right and increased climb. We then received the TCASII RA to climb, climb. We estimate the traffic passed 300 ft horizontal and 300 ft vertical from our aircraft. We were never told anything by the controller before the TCASII RA. Afterwards, the captain queried the controller about the TCASII RA. After a second call, the controller said the airplane was NORDO at 15000 ft, and that the airplane passed behind us. The captain then informed the controller that had we not had TCASII and turned, the traffic would not have passed us at all. We told the controller no problem after he apologized. I don't know if the controller was preoccupied with the NORDO aircraft, or what, but there was a breakdown in communication somewhere. We should have been told to expedite climb, or stop climb at 14000 ft. I can tell you this, at the closure rate and our rate of climb at the time, I figure we would have missed by 50 ft or not at all if we had not had TCASII on board. This being my first RA, I am a believer in TCASII!

Original NASA ASRS Text

Title: FLC OF AN MLG ACR ACFT TOOK EVASIVE ACTION IN RESPONSE TO A TCASII RA AND INCREASED CLB RATE AND TURNED TO AVOID ANOTHER ACFT. NMAC.

Narrative: WE WERE FLT FROM BWI TO ROA. WE WERE HANDED OFF FROM BALTIMORE DEP TO ZDC. WE WERE CLRED TO FL200. WE WERE CLBING OUT OF 14500 FT WHEN THE TCASII SOUNDED A TA -- TFC, TFC. BOTH THE CAPT AND I LOOKED AT THE TCASII SCREEN AND NOTICED THE INTRUDER ACFT ON THE SCREEN AT 12 O'CLOCK AND APPROX 5 MI. BY THEN WE WERE AT 14700 FT AND REALIZED THE INTRUDER ACFT WAS AT 15000 FT. BEFORE THE TCASII RA, THE CAPT ADDED FULL PWR, TURNED 5 DEGS BANK TO R AND INCREASED CLB. WE THEN RECEIVED THE TCASII RA TO CLB, CLB. WE ESTIMATE THE TFC PASSED 300 FT HORIZ AND 300 FT VERT FROM OUR ACFT. WE WERE NEVER TOLD ANYTHING BY THE CTLR BEFORE THE TCASII RA. AFTERWARDS, THE CAPT QUERIED THE CTLR ABOUT THE TCASII RA. AFTER A SECOND CALL, THE CTLR SAID THE AIRPLANE WAS NORDO AT 15000 FT, AND THAT THE AIRPLANE PASSED BEHIND US. THE CAPT THEN INFORMED THE CTLR THAT HAD WE NOT HAD TCASII AND TURNED, THE TFC WOULD NOT HAVE PASSED US AT ALL. WE TOLD THE CTLR NO PROB AFTER HE APOLOGIZED. I DON'T KNOW IF THE CTLR WAS PREOCCUPIED WITH THE NORDO ACFT, OR WHAT, BUT THERE WAS A BREAKDOWN IN COM SOMEWHERE. WE SHOULD HAVE BEEN TOLD TO EXPEDITE CLB, OR STOP CLB AT 14000 FT. I CAN TELL YOU THIS, AT THE CLOSURE RATE AND OUR RATE OF CLB AT THE TIME, I FIGURE WE WOULD HAVE MISSED BY 50 FT OR NOT AT ALL IF WE HAD NOT HAD TCASII ON BOARD. THIS BEING MY FIRST RA, I AM A BELIEVER IN TCASII!

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.

Flight crew of an medium large transport air carrier aircraft took evasive action in response to a TCASII RA and increased climb rate and turned to avoid another aircraft. Near midair collision.