Altitude deviation altitude excursion on TCASII RA.

Attributes
ACN	202002
Time
Date	199202
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : dca
State Reference	DC
Altitude	msl bound lower : 11000 msl bound upper : 11200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dca tower : dca
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other cruise other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : flight engineer pilot : instrument pilot : atp
Experience	flight time last 90 days : 240 flight time total : 16000 flight time type : 3000
ASRS Report	202002
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 12000 vertical : 700
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Approximately 40 DME east of dca, wbound, inbound to dca, 11000 ft. Traffic issued 1 O'clock, altitude 10.5-10.6. As traffic sighted, simultaneously TCASII gave RA to climb; we agreed visually and climbed under 200 ft as traffic passed under. Controller inquired were we climbing per TCASII even though traffic in sight. I replied we agreed with RA. I would not call it a near miss, but believe the climb was prudent considering proximity when traffic sighted and RA sounded.

Original NASA ASRS Text

Title: ALTDEV ALT EXCURSION ON TCASII RA.

Narrative: APPROX 40 DME E OF DCA, WBOUND, INBOUND TO DCA, 11000 FT. TFC ISSUED 1 O'CLOCK, ALT 10.5-10.6. AS TFC SIGHTED, SIMULTANEOUSLY TCASII GAVE RA TO CLB; WE AGREED VISUALLY AND CLBED UNDER 200 FT AS TFC PASSED UNDER. CTLR INQUIRED WERE WE CLBING PER TCASII EVEN THOUGH TFC IN SIGHT. I REPLIED WE AGREED WITH RA. I WOULD NOT CALL IT A NEAR MISS, BUT BELIEVE THE CLB WAS PRUDENT CONSIDERING PROX WHEN TFC SIGHTED AND RA SOUNDED.

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.