Commuter flight crew fails to make crossing restr in descent.

Attributes
ACN	461530
Time
Date	200001
Day	Sat
Local Time Of Day	1201 To 1800
Place
State Reference	IL
Altitude	msl bound lower : 4000 msl bound upper : 5500
Environment
Flight Conditions	IMC
Weather Elements	Snow Turbulence Ice
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : p31.tracon
Operator	common carrier : air taxi
Make Model Name	Super King Air 200 HDC
Operating Under FAR Part	Part 135
Navigation In Use	other
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : multi engine
Experience	flight time last 90 days : 120 flight time total : 4020 flight time type : 1960
ASRS Report	461530
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : commercial pilot : multi engine pilot : instrument
Events
Anomaly	altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : insufficient time
Supplementary
Problem Areas	Environmental Factor Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Aircraft was direct to cgx meigs field, chicago cgx from bvt VOR. At approximately 60 mi from cgx, I was cleared to cross 10 mi south of cgt VOR at 4000 ft. This NAVAID was not in FMS flight plan or on our route of flight. I started aircraft down as copilot found and tuned cgt. Aircraft rate of descent initially was fine to cross on altitude. At the same time I was receiving ATIS for meigs and was discovering it was going below minimums, and we needed to get ready for an approach to mdw. Couldn't get ATIS earlier as it was very broken. The aircraft was descending into solid IMC, icing and it was becoming moderate turbulence as well. I slowed the aircraft to reduce the turbulence. Autoplt was on. I was distraction from recognizing slower rate of descent by several issues in cockpit: rapidly decaying WX at destination and altitude, turbulence, and setting up aircraft for new approach, and informing passenger of our plans. I crossed assigned fix at approximately 1500 ft above assigned altitude. Just prior to crossing, I discovered problem and started to increase rate of descent. Controller questioned us on our position. Copilot told him we were 5500 ft.

Original NASA ASRS Text

Title: COMMUTER FLC FAILS TO MAKE XING RESTR IN DSCNT.

Narrative: ACFT WAS DIRECT TO CGX MEIGS FIELD, CHICAGO CGX FROM BVT VOR. AT APPROX 60 MI FROM CGX, I WAS CLRED TO CROSS 10 MI S OF CGT VOR AT 4000 FT. THIS NAVAID WAS NOT IN FMS FLT PLAN OR ON OUR RTE OF FLT. I STARTED ACFT DOWN AS COPLT FOUND AND TUNED CGT. ACFT RATE OF DSCNT INITIALLY WAS FINE TO CROSS ON ALT. AT THE SAME TIME I WAS RECEIVING ATIS FOR MEIGS AND WAS DISCOVERING IT WAS GOING BELOW MINIMUMS, AND WE NEEDED TO GET READY FOR AN APCH TO MDW. COULDN'T GET ATIS EARLIER AS IT WAS VERY BROKEN. THE ACFT WAS DSNDING INTO SOLID IMC, ICING AND IT WAS BECOMING MODERATE TURB AS WELL. I SLOWED THE ACFT TO REDUCE THE TURB. AUTOPLT WAS ON. I WAS DISTR FROM RECOGNIZING SLOWER RATE OF DSCNT BY SEVERAL ISSUES IN COCKPIT: RAPIDLY DECAYING WX AT DEST AND ALT, TURB, AND SETTING UP ACFT FOR NEW APCH, AND INFORMING PAX OF OUR PLANS. I CROSSED ASSIGNED FIX AT APPROX 1500 FT ABOVE ASSIGNED ALT. JUST PRIOR TO XING, I DISCOVERED PROB AND STARTED TO INCREASE RATE OF DSCNT. CTLR QUESTIONED US ON OUR POS. COPLT TOLD HIM WE WERE 5500 FT.

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.