Large transport aircraft flight crew flew wrong routing when captain relied on first officer's brief. First officer briefed correctly for the departure SID, but failed to notice the routing change from the filed flight plan. Center controller didn't intervene until aircraft was 20 mi from destination.

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Attributes
ACN	395090
Time
Date	199802
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : zoa
State Reference	OH
Altitude	msl bound lower : 31000 msl bound upper : 31000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob
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 : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 11000 flight time type : 6000
ASRS Report	395090
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	non adherence : clearance 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:

Navigation error. First officer flew aco-jst direct instead of actual clearance (145 degree radial to J518 then J152 jst). Flight plan was direct. First officer didn't brief captain. Captain didn't xchk. Prior to departure captain was out of cockpit coordinating passenger loading. First officer obtained flight clearance via clearance delivery. Captain returned to cockpit and asked first officer if clearance had been obtained. First officer acknowledged affirmative. Captain inquired if clearance was 'as filed.' first officer replied 'yes, and here's what we have to do for the departure.' unfamiliar SID was immediate point of discussion and briefing. Captain 'assumed' the rest of route of flight was as per computer flight plan. SID was flown as depicted by first officer. Computer flight plan included aco direct jst. Actual clearance required aco 145 degree radial to intercept J518 then J152 jst. First officer flew aco direct jst as per computer flight plan. 20 mi out of aco, center inquired about assigned route of flight and navigation error was acknowledged.

Original NASA ASRS Text

Title: LGT ACFT FLC FLEW WRONG ROUTING WHEN CAPT RELIED ON FO'S BRIEF. FO BRIEFED CORRECTLY FOR THE DEP SID, BUT FAILED TO NOTICE THE ROUTING CHANGE FROM THE FILED FLT PLAN. CTR CTLR DIDN'T INTERVENE UNTIL ACFT WAS 20 MI FROM DEST.

Narrative: NAV ERROR. FO FLEW ACO-JST DIRECT INSTEAD OF ACTUAL CLRNC (145 DEG RADIAL TO J518 THEN J152 JST). FLT PLAN WAS DIRECT. FO DIDN'T BRIEF CAPT. CAPT DIDN'T XCHK. PRIOR TO DEP CAPT WAS OUT OF COCKPIT COORDINATING PAX LOADING. FO OBTAINED FLT CLRNC VIA CLRNC DELIVERY. CAPT RETURNED TO COCKPIT AND ASKED FO IF CLRNC HAD BEEN OBTAINED. FO ACKNOWLEDGED AFFIRMATIVE. CAPT INQUIRED IF CLRNC WAS 'AS FILED.' FO REPLIED 'YES, AND HERE'S WHAT WE HAVE TO DO FOR THE DEP.' UNFAMILIAR SID WAS IMMEDIATE POINT OF DISCUSSION AND BRIEFING. CAPT 'ASSUMED' THE REST OF RTE OF FLT WAS AS PER COMPUTER FLT PLAN. SID WAS FLOWN AS DEPICTED BY FO. COMPUTER FLT PLAN INCLUDED ACO DIRECT JST. ACTUAL CLRNC REQUIRED ACO 145 DEG RADIAL TO INTERCEPT J518 THEN J152 JST. FO FLEW ACO DIRECT JST AS PER COMPUTER FLT PLAN. 20 MI OUT OF ACO, CTR INQUIRED ABOUT ASSIGNED RTE OF FLT AND NAV ERROR WAS ACKNOWLEDGED.

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.