Flight crew of air carrier light transport aircraft deviated from assigned descent in response to a ...

Attributes
ACN	219224
Time
Date	199208
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : iad
State Reference	VA
Altitude	msl bound lower : 3000 msl bound upper : 7500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : iad
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 200 flight time total : 3000 flight time type : 1200
ASRS Report	219224
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : undershoot altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flight was cleared to descend to 3000 by dulles approach. When at 7000 our original altitude, we received a TA from our TCASII. We followed it which it told us to climb. We climbed to 7500 until we were clear of the conflict. ATC was advised of what happened. The controller then cleared us again to 3000 ft in which we did. The traffic was never seen. There was no other questions asked. We proceeded on to iad.

Original NASA ASRS Text

Title: FLC OF ACR LTT ACFT DEVIATED FROM ASSIGNED DSCNT IN RESPONSE TO A TCASII RA.

Narrative: FLT WAS CLRED TO DSND TO 3000 BY DULLES APCH. WHEN AT 7000 OUR ORIGINAL ALT, WE RECEIVED A TA FROM OUR TCASII. WE FOLLOWED IT WHICH IT TOLD US TO CLB. WE CLBED TO 7500 UNTIL WE WERE CLR OF THE CONFLICT. ATC WAS ADVISED OF WHAT HAPPENED. THE CTLR THEN CLRED US AGAIN TO 3000 FT IN WHICH WE DID. THE TFC WAS NEVER SEEN. THERE WAS NO OTHER QUESTIONS ASKED. WE PROCEEDED ON TO IAD.

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 air carrier light transport aircraft deviated from assigned descent in response to a TCASII RA.