Air carrier responds to TCASII RA. Altitude deviation.

Attributes
ACN	255179
Time
Date	199310
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ont
State Reference	CA
Altitude	msl bound lower : 7000 msl bound upper : 10300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dfw
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Route In Use	enroute : direct enroute airway : ont
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 : atp
Experience	flight time last 90 days : 160 flight time total : 10200 flight time type : 4250
ASRS Report	255179
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 6000 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

Flight from phx to ont. In the descent to ont at bland and 14000 ft the controller gave us a right turn 225 degrees and descent to 7000 ft. We were at 14000 ft 250 KTS. We started the descent with speed brakes deployed. He then said to expedite descent to below 9000 ft due to VFR traffic at 9500 ft. We lowered the nose to a descent and deployed full speed brakes. At 10700 ft the nose was raised to slow back to 250 KTS below 10000. The TCASII gave a TA signal at 10100 ft and then a reduce descent, followed by a climb call. We leveled at 10000 ft and climbed to 10300 ft. We acquired the traffic both visually and on TCASII at 1030 O'clock and approximately 3 1/2 mi. The controller commented that if we had continued to expedite the descent we could have made it. We advised him that we had a TCASII.

Original NASA ASRS Text

Title: ACR RESPONDS TO TCASII RA. ALTDEV.

Narrative: FLT FROM PHX TO ONT. IN THE DSCNT TO ONT AT BLAND AND 14000 FT THE CTLR GAVE US A R TURN 225 DEGS AND DSCNT TO 7000 FT. WE WERE AT 14000 FT 250 KTS. WE STARTED THE DSCNT WITH SPD BRAKES DEPLOYED. HE THEN SAID TO EXPEDITE DSCNT TO BELOW 9000 FT DUE TO VFR TFC AT 9500 FT. WE LOWERED THE NOSE TO A DSCNT AND DEPLOYED FULL SPD BRAKES. AT 10700 FT THE NOSE WAS RAISED TO SLOW BACK TO 250 KTS BELOW 10000. THE TCASII GAVE A TA SIGNAL AT 10100 FT AND THEN A REDUCE DSCNT, FOLLOWED BY A CLB CALL. WE LEVELED AT 10000 FT AND CLBED TO 10300 FT. WE ACQUIRED THE TFC BOTH VISUALLY AND ON TCASII AT 1030 O'CLOCK AND APPROX 3 1/2 MI. THE CTLR COMMENTED THAT IF WE HAD CONTINUED TO EXPEDITE THE DSCNT WE COULD HAVE MADE IT. WE ADVISED HIM THAT WE HAD A 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.