First officer of air carrier large transport aircraft descended below assigned altitude in response ...

Attributes
ACN	214666
Time
Date	199207
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lga
State Reference	NY
Altitude	msl bound lower : 14500 msl bound upper : 15000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	artcc : zny
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute airway : zny
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : cfi pilot : atp
Experience	flight time last 90 days : 200 flight time total : 8500 flight time type : 275
ASRS Report	214666
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : cfi pilot : atp
Experience	flight time last 90 days : 160 flight time total : 16000 flight time type : 350
ASRS Report	214414
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 3000 vertical : 800
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Upon leveling at 15000 ft we received a TCASII TA of an aircraft at 2 O'clock and 15300 ft. An RA soon followed. We descended to 14500 until clear of conflict. Traffic passed within 1/2 mi and 800 ft vertical. ATC TA's were late and insufficient. We were not given a TA by ZNY until after we had responded to the RA and traffic was within 1 mi and 300 ft.

Original NASA ASRS Text

Title: FO OF ACR LGT ACFT DSNDED BELOW ASSIGNED ALT IN RESPONSE TO A TCASII RA.

Narrative: UPON LEVELING AT 15000 FT WE RECEIVED A TCASII TA OF AN ACFT AT 2 O'CLOCK AND 15300 FT. AN RA SOON FOLLOWED. WE DSNDED TO 14500 UNTIL CLR OF CONFLICT. TFC PASSED WITHIN 1/2 MI AND 800 FT VERT. ATC TA'S WERE LATE AND INSUFFICIENT. WE WERE NOT GIVEN A TA BY ZNY UNTIL AFTER WE HAD RESPONDED TO THE RA AND TFC WAS WITHIN 1 MI AND 300 FT.

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.

First officer of air carrier large transport aircraft descended below assigned altitude in response to a TCASII RA.