B757 altitude deviation arrival lax.

Attributes
ACN	449084
Time
Date	199909
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lax.airport
State Reference	CA
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : sct.tracon
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other other vortac
Flight Phase	descent : intermediate altitude descent : vacating altitude descent : approach
Route In Use	arrival star : pdz 3
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 20000 flight time type : 100
ASRS Report	449084
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	aircraft equipment problem : critical altitude deviation : overshoot non adherence : published procedure non adherence : clearance
Resolutory Action	controller : issued new clearance flight crew : returned to original clearance
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Normal descent into lax on pdz 3 arrival. Held up over pdz (16 mins). Originally cleared to expect ILS runway 25L, requested runway 24R. At pdz cleared for pdz 3 arrival. Asked first officer to set ILS runway 24R in FMS, but do not execute. First officer executed ILS runway 24R which eliminated pdz 3 arrival from FMS. Rapid descent in progress to make altitude restrs on STAR. Switched to raw data to monitor progress, crossed arnes/trese/supay/mitts above 11000 ft. Intercepted runway 24R localizer for normal approach and landing. First officer and I talked (on ground) about use of FMS on arrival and use of raw data preset backup at all times for arrs. Reliance on FMS data alone is but a finger stroke away from non data and at that point there is no time to reload the approach. No traffic conflict and no unusual action taken.

Original NASA ASRS Text

Title: B757 ALTDEV ARR LAX.

Narrative: NORMAL DSCNT INTO LAX ON PDZ 3 ARR. HELD UP OVER PDZ (16 MINS). ORIGINALLY CLRED TO EXPECT ILS RWY 25L, REQUESTED RWY 24R. AT PDZ CLRED FOR PDZ 3 ARR. ASKED FO TO SET ILS RWY 24R IN FMS, BUT DO NOT EXECUTE. FO EXECUTED ILS RWY 24R WHICH ELIMINATED PDZ 3 ARR FROM FMS. RAPID DSCNT IN PROGRESS TO MAKE ALT RESTRS ON STAR. SWITCHED TO RAW DATA TO MONITOR PROGRESS, CROSSED ARNES/TRESE/SUPAY/MITTS ABOVE 11000 FT. INTERCEPTED RWY 24R LOC FOR NORMAL APCH AND LNDG. FO AND I TALKED (ON GND) ABOUT USE OF FMS ON ARR AND USE OF RAW DATA PRESET BACKUP AT ALL TIMES FOR ARRS. RELIANCE ON FMS DATA ALONE IS BUT A FINGER STROKE AWAY FROM NON DATA AND AT THAT POINT THERE IS NO TIME TO RELOAD THE APCH. NO TFC CONFLICT AND NO UNUSUAL ACTION TAKEN.

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.