<< >> NASA ASRS Report 531449, November 2001

A B752 crew, descending into lax, were given a different arrival late in the descent, which required reprogramming of the FMC, this in turn distracted from the normal checklist usage which is a safety item.

Attributes
ACN	531449
Time
Date	200111
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	intersection : civet
State Reference	CA
Altitude	msl single value : 18000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sct.tracon tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival star : civet4
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 20000 flight time type : 2000
ASRS Report	531449
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	non adherence : published procedure non adherence : company policies other anomaly other
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	other
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	FAA Airport ATC Human Performance Airspace Structure
Primary Problem	ATC Human Performance

Narrative:

We have had many complaints about the ZLA handling upon arrival (FL180). ATC cleared us mitts arrival runway 24R. Arnes at 12000 ft. 1 min later he reclrs us runway 25L, via civet intercept the runway 25 localizer. I, PNF, reprogrammed the box, but it is a mad house. He asks if we need help (stair-step on the STAR). The box (FMC) goes nuts. We are just at transition point, so we don't get the descent and approach checks done until we are at 14000 ft. With FMC aircraft it's very hard to change stuff once it is in the box, also very dangerous.

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Original NASA ASRS Text

Title: A B752 CREW, DSNDING INTO LAX, WERE GIVEN A DIFFERENT ARR LATE IN THE DSCNT, WHICH REQUIRED REPROGRAMMING OF THE FMC, THIS IN TURN DISTRACTED FROM THE NORMAL CHKLIST USAGE WHICH IS A SAFETY ITEM.

Narrative: WE HAVE HAD MANY COMPLAINTS ABOUT THE ZLA HANDLING UPON ARR (FL180). ATC CLRED US MITTS ARR RWY 24R. ARNES AT 12000 FT. 1 MIN LATER HE RECLRS US RWY 25L, VIA CIVET INTERCEPT THE RWY 25 LOC. I, PNF, REPROGRAMMED THE BOX, BUT IT IS A MAD HOUSE. HE ASKS IF WE NEED HELP (STAIR-STEP ON THE STAR). THE BOX (FMC) GOES NUTS. WE ARE JUST AT TRANSITION POINT, SO WE DON'T GET THE DSCNT AND APCH CHKS DONE UNTIL WE ARE AT 14000 FT. WITH FMC ACFT IT'S VERY HARD TO CHANGE STUFF ONCE IT IS IN THE BOX, ALSO VERY DANGEROUS.

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.