JS41 missed turn onto transition for iad approach.

Attributes
ACN	578768
Time
Date	200304
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	intersection : mulrr
State Reference	MD
Altitude	msl single value : 8000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : pct.tracon tower : cyyz.tower
Operator	common carrier : air taxi
Make Model Name	Jetstream 41
Operating Under FAR Part	Part 135
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	arrival star : n/s
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 20 flight time total : 2800 flight time type : 1200
ASRS Report	578768
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

As PF, the last known fix we were about to cross was binns, per the FMS. During descent approach check, the delro one arrival was noted, but not loaded. Upon attempting to load arrival, could not pull from database. When entering delro one from lrp FMS did not contain transition to iad. Thus, had to add manually. Since making entries we proceeded past mulrr without vectors. As we attempted to determine position using direct function on FMS, center queried us. They gave a 150 degree heading to join transition. By this time, FMS had 'dropped' our flight plan thus, we asked for vectors on transition to avoid any more heads down distractions in terminal area. Uneventful landing.

Original NASA ASRS Text

Title: JS41 MISSED TURN ONTO TRANSITION FOR IAD APCH.

Narrative: AS PF, THE LAST KNOWN FIX WE WERE ABOUT TO CROSS WAS BINNS, PER THE FMS. DURING DSCNT APCH CHK, THE DELRO ONE ARR WAS NOTED, BUT NOT LOADED. UPON ATTEMPTING TO LOAD ARR, COULD NOT PULL FROM DATABASE. WHEN ENTERING DELRO ONE FROM LRP FMS DID NOT CONTAIN TRANSITION TO IAD. THUS, HAD TO ADD MANUALLY. SINCE MAKING ENTRIES WE PROCEEDED PAST MULRR WITHOUT VECTORS. AS WE ATTEMPTED TO DETERMINE POS USING DIRECT FUNCTION ON FMS, CTR QUERIED US. THEY GAVE A 150 DEG HDG TO JOIN TRANSITION. BY THIS TIME, FMS HAD 'DROPPED' OUR FLT PLAN THUS, WE ASKED FOR VECTORS ON TRANSITION TO AVOID ANY MORE HEADS DOWN DISTRACTIONS IN TERMINAL AREA. UNEVENTFUL LNDG.

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.