<< >> NASA ASRS Report 201433, February 1992

Reporter's departure traffic aircraft was threat idented by arrival traffic aircraft TCASII RA and alert created an altitude deviation altitude excursion in an evasive action climb maneuver by PIC of aircraft Y. PIC of aircraft X later informed visibility dispatch of situation with opposite direction traffic. Traffic sep theoretically was 2000 ft.

Attributes
ACN	201433
Time
Date	199202
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : jfk
State Reference	NY
Altitude	msl bound lower : 11000 msl bound upper : 13500
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : direct enroute airway : n90
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Flight Phase	descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 45 flight time total : 18000 flight time type : 1000
ASRS Report	201433
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 90 flight time total : 7500 flight time type : 1400
ASRS Report	201244
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	faa : investigated
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

I was PIC of air carrier flight to cincinnati, oh. I was cleared to 11000 ft (MSL), direct robinsville, expect climb (further) in 7 mi. Adhered to clearance. No incident reported to me by ny departure control. I learned several hours later that another airlines flight in a descent to jfk, at 13000 ft MSL took evasive action due to TCASII alert and climbed 500 ft above 13000 ft. My aircraft was not equipped with TCASII. I have no knowledge of the incident other than what I was told post incident. TCASII software should be examined and modified to preclude incidents such as this.

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Original NASA ASRS Text

Title: RPTR'S DEP TFC ACFT WAS THREAT IDENTED BY ARR TFC ACFT TCASII RA AND ALERT CREATED AN ALTDEV ALT EXCURSION IN AN EVASIVE ACTION CLB MANEUVER BY PIC OF ACFT Y. PIC OF ACFT X LATER INFORMED VIS DISPATCH OF SITUATION WITH OPPOSITE DIRECTION TFC. TFC SEP THEORETICALLY WAS 2000 FT.

Narrative: I WAS PIC OF ACR FLT TO CINCINNATI, OH. I WAS CLRED TO 11000 FT (MSL), DIRECT ROBINSVILLE, EXPECT CLB (FURTHER) IN 7 MI. ADHERED TO CLRNC. NO INCIDENT RPTED TO ME BY NY DEP CTL. I LEARNED SEVERAL HRS LATER THAT ANOTHER AIRLINES FLT IN A DSCNT TO JFK, AT 13000 FT MSL TOOK EVASIVE ACTION DUE TO TCASII ALERT AND CLBED 500 FT ABOVE 13000 FT. MY ACFT WAS NOT EQUIPPED WITH TCASII. I HAVE NO KNOWLEDGE OF THE INCIDENT OTHER THAN WHAT I WAS TOLD POST INCIDENT. TCASII SOFTWARE SHOULD BE EXAMINED AND MODIFIED TO PRECLUDE INCIDENTS SUCH AS THIS.

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.