Air carrier flight crew misunderstands amended pre departure clearance and enters wrong route in FMC...

Attributes
ACN	781607
Time
Date	200804
Place
Locale Reference	intersection : vallo
State Reference	PA
Altitude	msl single value : 26000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	artcc : zny.artcc tracon : d10.tracon
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 270 flight time type : 8000
ASRS Report	787607
Person 2
Affiliation	government : faa
Function	controller : radar
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance flight crew : returned to intended or assigned course
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Failed to identify the pre departure clearance error has been described in the WX packet for the last few weeks. To buf was planned via the standard route. SID to jeres.J220.buf.. Buf pre departure clearance amended clearance read: SID to jeres.J220.vallo. FMC route was then inputted as amended but went direct buf instead of J220 after vallo intersection which was the standard route. Center gave heading after vallo to re-intercept J220 after vallo instead of cutting the dogleg direct buf. I did notice the amendment but did not realize that vallo was on J220 and accepted first officer's interpretation of clearance. The WX packet had the correct interpretation but I failed to connect the dots to our amended clearance. Need to use maps as a backup to check clearance. As filed route was in effect; although it appeared to be amended for ARTCC host computer input. Trust but verify.

Original NASA ASRS Text

Title: ACR FLT CREW MISUNDERSTANDS AMENDED PDC AND ENTERS WRONG ROUTE IN FMC.

Narrative: FAILED TO IDENT THE PDC ERROR HAS BEEN DESCRIBED IN THE WX PACKET FOR THE LAST FEW WKS. TO BUF WAS PLANNED VIA THE STANDARD RTE. SID TO JERES.J220.BUF.. BUF PDC AMENDED CLRNC READ: SID TO JERES.J220.VALLO. FMC RTE WAS THEN INPUTTED AS AMENDED BUT WENT DIRECT BUF INSTEAD OF J220 AFTER VALLO INTXN WHICH WAS THE STANDARD RTE. CTR GAVE HDG AFTER VALLO TO RE-INTERCEPT J220 AFTER VALLO INSTEAD OF CUTTING THE DOGLEG DIRECT BUF. I DID NOTICE THE AMENDMENT BUT DID NOT REALIZE THAT VALLO WAS ON J220 AND ACCEPTED FO'S INTERP OF CLRNC. THE WX PACKET HAD THE CORRECT INTERP BUT I FAILED TO CONNECT THE DOTS TO OUR AMENDED CLRNC. NEED TO USE MAPS AS A BACKUP TO CHK CLRNC. AS FILED RTE WAS IN EFFECT; ALTHOUGH IT APPEARED TO BE AMENDED FOR ARTCC HOST COMPUTER INPUT. TRUST BUT VERIFY.

Data retrieved from NASA's ASRS site as of May 2009 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.