Unauthorized runway entry in night operation.

Attributes
ACN	251992
Time
Date	199309
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dsm
State Reference	IA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	Marginal
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	ground other : taxi
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	descent : approach landing : go around
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 220 flight time total : 1670 flight time type : 203
ASRS Report	251992
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : ground critical incursion : runway non adherence : clearance non adherence : far
Independent Detector	other flight crewa other other : unspecified
Resolutory Action	flight crew : took evasive action other
Consequence	Other
Miss Distance	horizontal : 30 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Situation: taxiing from FBO to runway 31R at dsm airport. Our clearance was to taxi via taxiway a, runway 23, taxiway D to runway 31R. As we turned off runway 23 and onto taxiway D, I was reading the taxi checklist. Looking on my HSI I noticed our 'heading' was not approximately 130 degrees. By this time we should be paralleling runway 31 so I looked up. The taxi layout at this point was confusing, so I looked over my right shoulder and saw that we were about to cross runway edge lights. At this point I told the captain to stop. Turning my head to the left I saw that at that moment an large transport made a go around. Ground control, which was also handling tower and departure/arrs, cleared us now 'into position and hold,' after which we received our takeoff clearance. Neither ATC nor the air carrier crew did try to contact us about the occurrence. When the large transport started its go around we were still on ground frequency.

Original NASA ASRS Text

Title: UNAUTH RWY ENTRY IN NIGHT OP.

Narrative: SIT: TAXIING FROM FBO TO RWY 31R AT DSM ARPT. OUR CLRNC WAS TO TAXI VIA TXWY A, RWY 23, TXWY D TO RWY 31R. AS WE TURNED OFF RWY 23 AND ONTO TXWY D, I WAS READING THE TAXI CHKLIST. LOOKING ON MY HSI I NOTICED OUR 'HDG' WAS NOT APPROX 130 DEGS. BY THIS TIME WE SHOULD BE PARALLELING RWY 31 SO I LOOKED UP. THE TAXI LAYOUT AT THIS POINT WAS CONFUSING, SO I LOOKED OVER MY R SHOULDER AND SAW THAT WE WERE ABOUT TO CROSS RWY EDGE LIGHTS. AT THIS POINT I TOLD THE CAPT TO STOP. TURNING MY HEAD TO THE L I SAW THAT AT THAT MOMENT AN LGT MADE A GAR. GND CTL, WHICH WAS ALSO HANDLING TWR AND DEP/ARRS, CLRED US NOW 'INTO POS AND HOLD,' AFTER WHICH WE RECEIVED OUR TKOF CLRNC. NEITHER ATC NOR THE ACR CREW DID TRY TO CONTACT US ABOUT THE OCCURRENCE. WHEN THE LGT STARTED ITS GAR WE WERE STILL ON GND FREQ.

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.