PIC of air carrier medium large transport reports an off course incident due to the first officer's misreading of the chart, thereby missing an intersection turn. A potential conflict was then sensed by their TCASII.

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Attributes
ACN	368271
Time
Date	199705
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bwi
State Reference	MD
Altitude	msl bound lower : 10000 msl bound upper : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bwi tower : dfw
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Route In Use	enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : instrument pilot : cfi
Experience	flight time last 90 days : 200 flight time total : 15000 flight time type : 2000
ASRS Report	368271
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action flight crew : became reoriented
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

My attention was on obtaining ATIS and gate information, first officer was flying. He leveled off and we got an RA on the TCASII. Turns out we were off course. The first officer stated that the way his map was folded, the mileage for the route was by the intersection we were to turn at, so he continued straight looking for the incorrect DME, rather than turning on course. Suggest mileages be printed away from intxns mi used to define the intersection.

Original NASA ASRS Text

Title: PIC OF ACR MLG RPTS AN OFF COURSE INCIDENT DUE TO THE FO'S MISREADING OF THE CHART, THEREBY MISSING AN INTXN TURN. A POTENTIAL CONFLICT WAS THEN SENSED BY THEIR TCASII.

Narrative: MY ATTN WAS ON OBTAINING ATIS AND GATE INFO, FO WAS FLYING. HE LEVELED OFF AND WE GOT AN RA ON THE TCASII. TURNS OUT WE WERE OFF COURSE. THE FO STATED THAT THE WAY HIS MAP WAS FOLDED, THE MILEAGE FOR THE RTE WAS BY THE INTXN WE WERE TO TURN AT, SO HE CONTINUED STRAIGHT LOOKING FOR THE INCORRECT DME, RATHER THAN TURNING ON COURSE. SUGGEST MILEAGES BE PRINTED AWAY FROM INTXNS MI USED TO DEFINE THE INTXN.

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.