<< >> NASA ASRS Report 392170, January 1998

A cpr G4 flight crew misinterped a pre departure clearance and the first officer entered the wrong SID transition in the FMS. The departure controller vectored them back on course.

Attributes
ACN	392170
Time
Date	199801
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : las
State Reference	NV
Altitude	msl bound lower : 4500 msl bound upper : 4500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : las
Operator	general aviation : corporate
Make Model Name	Gulfstream IV
Operating Under FAR Part	Part 91
Navigation In Use	Other Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : cfi pilot : atp
Experience	flight time last 90 days : 120 flight time total : 10500 flight time type : 1400
ASRS Report	392170
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	non adherence : published procedure non adherence : far non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

A pre departure clearance was received and data in FMS amended. The copilot entered additional data that was not challenged. The wrong transition was placed in front of the correct outbound fix. In flight, ATC had to correct the aircraft track with a turn to on course. No conflict noted. The correct fix was gfs, not dag. Contributing factors: 2 pilots entering data, but a misleading pre departure clearance format probably foremost. How discovered: ATC. Corrective action: better CRM, heads up on pre departure clearance format versus ATC.

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Original NASA ASRS Text

Title: A CPR G4 FLC MISINTERPED A PDC AND THE FO ENTERED THE WRONG SID TRANSITION IN THE FMS. THE DEP CTLR VECTORED THEM BACK ON COURSE.

Narrative: A PDC WAS RECEIVED AND DATA IN FMS AMENDED. THE COPLT ENTERED ADDITIONAL DATA THAT WAS NOT CHALLENGED. THE WRONG TRANSITION WAS PLACED IN FRONT OF THE CORRECT OUTBOUND FIX. IN FLT, ATC HAD TO CORRECT THE ACFT TRACK WITH A TURN TO ON COURSE. NO CONFLICT NOTED. THE CORRECT FIX WAS GFS, NOT DAG. CONTRIBUTING FACTORS: 2 PLTS ENTERING DATA, BUT A MISLEADING PDC FORMAT PROBABLY FOREMOST. HOW DISCOVERED: ATC. CORRECTIVE ACTION: BETTER CRM, HEADS UP ON PDC FORMAT VERSUS ATC.

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.