Air carrier A300 flight crew perceives they are task saturated and do not meet ATC, STAR assigned altitude. In complying with direct route assignment, the previous STAR intersection is dropped from the navigation display. ATC assigns an altitude crossing restr to that intersection, and the flight crew cannot be sure the intersection was re-entered in sufficient time to meet the crossing restr. Pilot concerned with workload.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	410680
Time
Date	199808
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : rmg airport : atl
State Reference	GA
Altitude	msl bound lower : 10000 msl bound upper : 13000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl tracon : atl
Operator	common carrier : air carrier
Make Model Name	A300
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 95 flight time total : 3700 flight time type : 600
ASRS Report	410680
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : crossing restriction not met
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

En route to atl on the rome one arrival from mem. Prior to rome was given clearance to 13000 ft direct dalas. When switched to approach control, clearance to pass erlin intersection at 13000 ft then descend to 10000 ft. Since we were cleared direct dalas intersection, erlin intersection was no longer displayed on the navigation display. We assumed we had passed erlin and descended to 10000 ft. I am not positive that we were past erlin intersection when we began the descent. This was a highly congested arrival and we were given numerous vectors. We had to eliminate erlin intersection when cleared direct to dalas intersection, in the FMC. The vors were autotuned to rmg VOR. Being a 2 man cockpit, we were task saturated and given an altitude clearance to a fix that we were no longer cleared to (dalas is beyond erlin). No conflict was indicated and the controller did not indicate we had descended early.

Original NASA ASRS Text

Title: ACR A300 FLC PERCEIVES THEY ARE TASK SATURATED AND DO NOT MEET ATC, STAR ASSIGNED ALT. IN COMPLYING WITH DIRECT RTE ASSIGNMENT, THE PREVIOUS STAR INTXN IS DROPPED FROM THE NAV DISPLAY. ATC ASSIGNS AN ALT XING RESTR TO THAT INTXN, AND THE FLC CANNOT BE SURE THE INTXN WAS RE-ENTERED IN SUFFICIENT TIME TO MEET THE XING RESTR. PLT CONCERNED WITH WORKLOAD.

Narrative: ENRTE TO ATL ON THE ROME ONE ARR FROM MEM. PRIOR TO ROME WAS GIVEN CLRNC TO 13000 FT DIRECT DALAS. WHEN SWITCHED TO APCH CTL, CLRNC TO PASS ERLIN INTXN AT 13000 FT THEN DSND TO 10000 FT. SINCE WE WERE CLRED DIRECT DALAS INTXN, ERLIN INTXN WAS NO LONGER DISPLAYED ON THE NAV DISPLAY. WE ASSUMED WE HAD PASSED ERLIN AND DSNDED TO 10000 FT. I AM NOT POSITIVE THAT WE WERE PAST ERLIN INTXN WHEN WE BEGAN THE DSCNT. THIS WAS A HIGHLY CONGESTED ARR AND WE WERE GIVEN NUMEROUS VECTORS. WE HAD TO ELIMINATE ERLIN INTXN WHEN CLRED DIRECT TO DALAS INTXN, IN THE FMC. THE VORS WERE AUTOTUNED TO RMG VOR. BEING A 2 MAN COCKPIT, WE WERE TASK SATURATED AND GIVEN AN ALT CLRNC TO A FIX THAT WE WERE NO LONGER CLRED TO (DALAS IS BEYOND ERLIN). NO CONFLICT WAS INDICATED AND THE CTLR DID NOT INDICATE WE HAD DSNDED EARLY.

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.