Medium large transport erroneously taxied into ILS critical area at sea.

Attributes
ACN	428255
Time
Date	199902
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sea.airport
State Reference	WA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	ground : holding ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 170 flight time total : 15000 flight time type : 10000
ASRS Report	428255
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe incursion : runway
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After engine start we had an electrical relay switching problem. Our company maintenance control was notified after many attempts. I was asked by ground control T move the aircraft in the alley. This occurred at the same time we were trying to troubleshoot the problem. After researching the problem in our MEL book, we felt we could go with an en route MEL which maintenance control agreed with. I then asked for taxi clearance and was given instructions to taxi to runway 16L, hold short at intersection 1. As we approached intersection Q, the company called with our numbers. With a high gross takeoff weight, we asked ground for runway 16R full length, and were given instructions to taxi to runway 16R, but hold short of the ILS critical area. As we approached the critical area, the company maintenance controller called with the maintenance amended release with instructions for logbook entry. As the copilot was consumed, head down, I was further distraction adjusting the radio to hear both tower and company. I taxied across the ILS critical hold line, stopping 20-30 ft in the zone. Looking back on this problem, I now feel it would have been better to taxi to a holding area, take care of the paperwork, sort out the problem, and then taxi. Both pilots must be heads up during this phase of operation.

Original NASA ASRS Text

Title: MLG ERRONEOUSLY TAXIED INTO ILS CRITICAL AREA AT SEA.

Narrative: AFTER ENG START WE HAD AN ELECTRICAL RELAY SWITCHING PROB. OUR COMPANY MAINT CTL WAS NOTIFIED AFTER MANY ATTEMPTS. I WAS ASKED BY GND CTL T MOVE THE ACFT IN THE ALLEY. THIS OCCURRED AT THE SAME TIME WE WERE TRYING TO TROUBLESHOOT THE PROB. AFTER RESEARCHING THE PROB IN OUR MEL BOOK, WE FELT WE COULD GO WITH AN ENRTE MEL WHICH MAINT CTL AGREED WITH. I THEN ASKED FOR TAXI CLRNC AND WAS GIVEN INSTRUCTIONS TO TAXI TO RWY 16L, HOLD SHORT AT INTXN 1. AS WE APCHED INTXN Q, THE COMPANY CALLED WITH OUR NUMBERS. WITH A HIGH GROSS TKOF WT, WE ASKED GND FOR RWY 16R FULL LENGTH, AND WERE GIVEN INSTRUCTIONS TO TAXI TO RWY 16R, BUT HOLD SHORT OF THE ILS CRITICAL AREA. AS WE APCHED THE CRITICAL AREA, THE COMPANY MAINT CTLR CALLED WITH THE MAINT AMENDED RELEASE WITH INSTRUCTIONS FOR LOGBOOK ENTRY. AS THE COPLT WAS CONSUMED, HEAD DOWN, I WAS FURTHER DISTR ADJUSTING THE RADIO TO HEAR BOTH TWR AND COMPANY. I TAXIED ACROSS THE ILS CRITICAL HOLD LINE, STOPPING 20-30 FT IN THE ZONE. LOOKING BACK ON THIS PROB, I NOW FEEL IT WOULD HAVE BEEN BETTER TO TAXI TO A HOLDING AREA, TAKE CARE OF THE PAPERWORK, SORT OUT THE PROB, AND THEN TAXI. BOTH PLTS MUST BE HEADS UP DURING THIS PHASE OF OP.

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.