CE560 experiences hot start due to no N1 rotation.

Attributes
ACN	721368
Time
Date	200612
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : gjt.airport
State Reference	CO
Altitude	agl single value : 0
Environment
Weather Elements	Snow Ice
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Citation Excel
Operating Under FAR Part	Part 91
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 6100 flight time type : 200
ASRS Report	721368
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : less severe inflight encounter : weather
Independent Detector	aircraft equipment other aircraft equipment : itt gauge other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Supplementary
Problem Areas	Weather Aircraft Flight Crew Human Performance
Primary Problem	Weather

Narrative:

#1 itt exceeded limits on start. Cause was no N1 initially; on start; most likely due fan frozen in place from melted snow. Light snow on landing that stopped soon after shutdown. 2 hours later; water on wings was ice and aircraft was being taxied to deice area. #2 engine start was normal. #1 had no N1 after throttle moved to idle (with normal fuel flow and oil pressure). Prior to moving throttle to cut off; fan came unstuck/unfrozen and engine started. Itt exceeded aircraft limitations on the start but returned to normal parameters. Engine was then shut down per start malfunction checklist. Lesson learned: 'if it is on the wings (ice; snow; frost; etc) it's in the engine intakes...until proved otherwise.' though hard to see and get to; in the future I will be positive that the fan moves before start and/or see at least 'some' N1; prior to moving a throttle to start/idle.

Original NASA ASRS Text

Title: CE560 EXPERIENCES HOT START DUE TO NO N1 ROTATION.

Narrative: #1 ITT EXCEEDED LIMITS ON START. CAUSE WAS NO N1 INITIALLY; ON START; MOST LIKELY DUE FAN FROZEN IN PLACE FROM MELTED SNOW. LIGHT SNOW ON LNDG THAT STOPPED SOON AFTER SHUTDOWN. 2 HRS LATER; WATER ON WINGS WAS ICE AND ACFT WAS BEING TAXIED TO DEICE AREA. #2 ENG START WAS NORMAL. #1 HAD NO N1 AFTER THROTTLE MOVED TO IDLE (WITH NORMAL FUEL FLOW AND OIL PRESSURE). PRIOR TO MOVING THROTTLE TO CUT OFF; FAN CAME UNSTUCK/UNFROZEN AND ENG STARTED. ITT EXCEEDED ACFT LIMITATIONS ON THE START BUT RETURNED TO NORMAL PARAMETERS. ENG WAS THEN SHUT DOWN PER START MALFUNCTION CHKLIST. LESSON LEARNED: 'IF IT IS ON THE WINGS (ICE; SNOW; FROST; ETC) IT'S IN THE ENG INTAKES...UNTIL PROVED OTHERWISE.' THOUGH HARD TO SEE AND GET TO; IN THE FUTURE I WILL BE POSITIVE THAT THE FAN MOVES BEFORE START AND/OR SEE AT LEAST 'SOME' N1; PRIOR TO MOVING A THROTTLE TO START/IDLE.

Data retrieved from NASA's ASRS site as of January 2009 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.