Air carrier flight crew experiences altitude and track deviation while on karlo two STAR to phx.

Attributes
ACN	129411
Time
Date	198911
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : srp airport : phx
State Reference	AZ
Altitude	msl bound lower : 8600 msl bound upper : 9000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : phx
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Route In Use	arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 230 flight time total : 6600 flight time type : 2980
ASRS Report	129411
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : overshoot non adherence : clearance other spatial deviation
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance flight crew : became reoriented other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

The first officer was flying the karlo 2 arrival into phx via the drake transition. We were cleared to 9000' by phx approach. Passing 10,000' I made the standard callouts, 10,000, and 10 for 9. We passed the srp 312 degree radial at 26 DME and continued inbound. The first officer realized that we should have turned at vadrr (srp 312 degree radial at 26). We both focused our attention to the approach plate. The controller asked us to say our altitude. We were at approximately 8600'. The first officer responded that we overshot our altitude and were correcting. We returned to 9000' and the lowest we got was 8500'. The first officer turned towards aquar and I tuned the stanfield 334 degree radial to check how far from the STAR we were. ATC later gave us heading and altitude changes and we landed at phx.

Original NASA ASRS Text

Title: ACR FLT CREW EXPERIENCES ALT AND TRACK DEVIATION WHILE ON KARLO TWO STAR TO PHX.

Narrative: THE F/O WAS FLYING THE KARLO 2 ARR INTO PHX VIA THE DRAKE TRANSITION. WE WERE CLRED TO 9000' BY PHX APCH. PASSING 10,000' I MADE THE STANDARD CALLOUTS, 10,000, AND 10 FOR 9. WE PASSED THE SRP 312 DEG RADIAL AT 26 DME AND CONTINUED INBND. THE F/O REALIZED THAT WE SHOULD HAVE TURNED AT VADRR (SRP 312 DEG RADIAL AT 26). WE BOTH FOCUSED OUR ATTN TO THE APCH PLATE. THE CTLR ASKED US TO SAY OUR ALT. WE WERE AT APPROX 8600'. THE F/O RESPONDED THAT WE OVERSHOT OUR ALT AND WERE CORRECTING. WE RETURNED TO 9000' AND THE LOWEST WE GOT WAS 8500'. THE F/O TURNED TOWARDS AQUAR AND I TUNED THE STANFIELD 334 DEG RADIAL TO CHECK HOW FAR FROM THE STAR WE WERE. ATC LATER GAVE US HDG AND ALT CHANGES AND WE LANDED AT PHX.

Data retrieved from NASA's ASRS site as of August 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.