A319 crew had track deviation on arrival to lax.

Attributes
ACN	473585
Time
Date	200005
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	intersection : civet
State Reference	CA
Altitude	msl single value : 17000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sct.tracon
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : vacating altitude
Route In Use	arrival star : civet * mitts
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 15000 flight time type : 400
ASRS Report	473585
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	non adherence : company policies non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance flight crew : returned to intended or assigned course none taken : detected after the fact
Supplementary
Problem Areas	Airspace Structure FAA Flight Crew Human Performance ATC Human Performance Aircraft Airport
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Originally cleared for civet arrival route to runway 25L at lax. Changed to mitts arrival runway 24R. Activated secondary flight plan which was pre-loaded for mitts arrival runway 24R. PF did not go back to navigation mode. In heading mode, passed over civet and missed right turn to mitts. Ended up about 1.5 mi off course and corrected per instructions from approach control. PNF on radio at time of activating secondary flight plan and did not properly back up PF when he should have activated navigation mode. Another out-of-loop experience where PNF should have caught the problem but was distraction by radio.

Original NASA ASRS Text

Title: A319 CREW HAD TRACK DEV ON ARR TO LAX.

Narrative: ORIGINALLY CLRED FOR CIVET ARR RTE TO RWY 25L AT LAX. CHANGED TO MITTS ARR RWY 24R. ACTIVATED SECONDARY FLT PLAN WHICH WAS PRE-LOADED FOR MITTS ARR RWY 24R. PF DID NOT GO BACK TO NAV MODE. IN HDG MODE, PASSED OVER CIVET AND MISSED R TURN TO MITTS. ENDED UP ABOUT 1.5 MI OFF COURSE AND CORRECTED PER INSTRUCTIONS FROM APCH CTL. PNF ON RADIO AT TIME OF ACTIVATING SECONDARY FLT PLAN AND DID NOT PROPERLY BACK UP PF WHEN HE SHOULD HAVE ACTIVATED NAV MODE. ANOTHER OUT-OF-LOOP EXPERIENCE WHERE PNF SHOULD HAVE CAUGHT THE PROB BUT WAS DISTR BY RADIO.

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.