DC9 crew departed VOR on the wrong radial.

Attributes
ACN	440760
Time
Date	199906
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : jst.vortac
State Reference	PA
Altitude	msl single value : 31000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob.artcc
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	enroute airway : j211.airway
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 11700 flight time type : 4400
ASRS Report	440760
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We flew into jst on J211 wbound. Right as we passed VOR and I updated the flight plan, the lead flight attendant came into the cockpit with a request. I failed to notice the first officer, who was flying, had entered the wrong outbound radial. About 2 1/2 mins after passing jst, center called us to say we had turned too far west and commanded a right turn back to airway. At that point I estimate that we were 6-7 mi left of centerline. The basic cause other than the first officer's mistake was that I failed in my responsibility to monitor his navigation at a turn point.

Original NASA ASRS Text

Title: DC9 CREW DEPARTED VOR ON THE WRONG RADIAL.

Narrative: WE FLEW INTO JST ON J211 WBOUND. RIGHT AS WE PASSED VOR AND I UPDATED THE FLT PLAN, THE LEAD FLT ATTENDANT CAME INTO THE COCKPIT WITH A REQUEST. I FAILED TO NOTICE THE FO, WHO WAS FLYING, HAD ENTERED THE WRONG OUTBOUND RADIAL. ABOUT 2 1/2 MINS AFTER PASSING JST, CTR CALLED US TO SAY WE HAD TURNED TOO FAR W AND COMMANDED A R TURN BACK TO AIRWAY. AT THAT POINT I ESTIMATE THAT WE WERE 6-7 MI L OF CTRLINE. THE BASIC CAUSE OTHER THAN THE FO'S MISTAKE WAS THAT I FAILED IN MY RESPONSIBILITY TO MONITOR HIS NAV AT A TURN POINT.

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.