A B777 PIC report regarding the possible use of incorrect data when reverting to old habits in applying intersection takeoff data for taxiway M and using that data for a takeoff from intersection T on runway 32L at ord, il.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	519374
Time
Date	200107
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time type : 650
ASRS Report	519324
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : became reoriented other
Consequence	other
Supplementary
Problem Areas	Company Flight Crew Human Performance Aircraft Airport Chart Or Publication
Primary Problem	Chart Or Publication
Situations
Airport	procedure or policy : ord.airport

Narrative:

The runway data for intersection M was listed under 32LJ for runway 32L. As long as I can recall, the data for T10 (the intersection most often used at ord) has been listed under 32LJ. A real pitfall was created for the crews because if they did everything they normally do they could easily get the wrong data for the runway. Fortunately, it is my practice to always compare the runway length available on the ATIS to the runway data information from the computer.

Original NASA ASRS Text

Title: A B777 PIC RPT REGARDING THE POSSIBLE USE OF INCORRECT DATA WHEN REVERTING TO OLD HABITS IN APPLYING INTXN TKOF DATA FOR TXWY M AND USING THAT DATA FOR A TKOF FROM INTXN T ON RWY 32L AT ORD, IL.

Narrative: THE RWY DATA FOR INTXN M WAS LISTED UNDER 32LJ FOR RWY 32L. AS LONG AS I CAN RECALL, THE DATA FOR T10 (THE INTXN MOST OFTEN USED AT ORD) HAS BEEN LISTED UNDER 32LJ. A REAL PITFALL WAS CREATED FOR THE CREWS BECAUSE IF THEY DID EVERYTHING THEY NORMALLY DO THEY COULD EASILY GET THE WRONG DATA FOR THE RWY. FORTUNATELY, IT IS MY PRACTICE TO ALWAYS COMPARE THE RWY LENGTH AVAILABLE ON THE ATIS TO THE RWY DATA INFO FROM THE COMPUTER.

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.