Flight crew of medium large transport made unauthorized runway entry.

Attributes
ACN	170402
Time
Date	199102
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : chs
State Reference	SC
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	ground : holding ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : instrument
ASRS Report	170402
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer observation : company check pilot
Qualification	pilot : atp pilot : commercial pilot : instrument
Events
Anomaly	incursion : runway
Independent Detector	other controllera
Resolutory Action	flight crew : became reoriented
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Taxied aircraft onto active runway while still on ground control. Switched to tower and told to taxi clear. No other traffic or aircraft involved. Confusion in cockpit due to captain flying and captain in right seat distraction by weight and balance problems. Misconstrued ground control instructions to taxi ahead of waiting aircraft and taxied onto and then across active to reposition for otherwise normal takeoff. Captain in right seat is a check airman was somewhat uneasy performing first officer duties. This distraction me while trying to help him out and I thought we were cleared 'on to hold.' conversation with tower indicated no problems were created. I must pay closer attention to my own duties and let the first officer position perform his. If difficulties occur the aircraft should be stopped and confusion must be solved before further taxiing.

Original NASA ASRS Text

Title: FLT CREW OF MLG MADE UNAUTH RWY ENTRY.

Narrative: TAXIED ACFT ONTO ACTIVE RWY WHILE STILL ON GND CTL. SWITCHED TO TWR AND TOLD TO TAXI CLR. NO OTHER TFC OR ACFT INVOLVED. CONFUSION IN COCKPIT DUE TO CAPT FLYING AND CAPT IN R SEAT DISTR BY WEIGHT AND BALANCE PROBS. MISCONSTRUED GND CTL INSTRUCTIONS TO TAXI AHEAD OF WAITING ACFT AND TAXIED ONTO AND THEN ACROSS ACTIVE TO REPOSITION FOR OTHERWISE NORMAL TKOF. CAPT IN R SEAT IS A CHK AIRMAN WAS SOMEWHAT UNEASY PERFORMING F/O DUTIES. THIS DISTR ME WHILE TRYING TO HELP HIM OUT AND I THOUGHT WE WERE CLRED 'ON TO HOLD.' CONVERSATION WITH TWR INDICATED NO PROBS WERE CREATED. I MUST PAY CLOSER ATTN TO MY OWN DUTIES AND LET THE F/O POS PERFORM HIS. IF DIFFICULTIES OCCUR THE ACFT SHOULD BE STOPPED AND CONFUSION MUST BE SOLVED BEFORE FURTHER TAXIING.

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.