Track deviation. PF misset VOR.

Attributes
ACN	318390
Time
Date	199510
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ott
State Reference	MD
Altitude	msl bound lower : 15000 msl bound upper : 15000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Flight Phase	descent other
Route In Use	arrival other arrival star : star enroute airway : zdc
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 160 flight time total : 10000 flight time type : 5000
ASRS Report	318390
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 110 flight time total : 11000 flight time type : 50
ASRS Report	318389
Events
Anomaly	non adherence : clearance non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : became reoriented flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Captain was flying. He had correctly set obs and VOR to 085 degrees ott for dpnt 3 arrival. I, as per procedure, set my obs and VOR to next intersection at 'hedge' which required a left turn to stay on arrival. Prior to turn and after crossing ott, captain mistakenly used his obs knob as a heading selector knob, resulting in a different radial being tracked. This was remedied and we continued with arrival. Captain has recently transitioned from DC9 to B737-200 i.e., heading bug and obs selector reversed opposite side on DC9. Supplemental information from acn 318389: the heading and obs knobs are opposite. I did not notice I used the wrong knob. I changed the outbound course and followed it. I should have made sure I had the right knob.

Original NASA ASRS Text

Title: TRACK DEVIATION. PF MISSET VOR.

Narrative: CAPT WAS FLYING. HE HAD CORRECTLY SET OBS AND VOR TO 085 DEGS OTT FOR DPNT 3 ARR. I, AS PER PROC, SET MY OBS AND VOR TO NEXT INTXN AT 'HEDGE' WHICH REQUIRED A L TURN TO STAY ON ARR. PRIOR TO TURN AND AFTER XING OTT, CAPT MISTAKENLY USED HIS OBS KNOB AS A HDG SELECTOR KNOB, RESULTING IN A DIFFERENT RADIAL BEING TRACKED. THIS WAS REMEDIED AND WE CONTINUED WITH ARR. CAPT HAS RECENTLY TRANSITIONED FROM DC9 TO B737-200 I.E., HDG BUG AND OBS SELECTOR REVERSED OPPOSITE SIDE ON DC9. SUPPLEMENTAL INFO FROM ACN 318389: THE HDG AND OBS KNOBS ARE OPPOSITE. I DID NOT NOTICE I USED THE WRONG KNOB. I CHANGED THE OUTBOUND COURSE AND FOLLOWED IT. I SHOULD HAVE MADE SURE I HAD THE RIGHT KNOB.

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.