A gulfstream ii flight crew failed to cross intersection at assigned altitude on descent into ord.

Attributes
ACN	440310
Time
Date	199906
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	intersection : gipper
State Reference	IN
Altitude	msl bound lower : 31000 msl bound upper : 35000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zau.artcc
Operator	common carrier : air carrier
Make Model Name	Gulfstream I (Large Turboprop)
Operating Under FAR Part	Part 135
Navigation In Use	other
Flight Plan	IFR
Person 1
Affiliation	company : charter
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 150 flight time total : 4500 flight time type : 1000
ASRS Report	440310
Person 2
Affiliation	company : charter
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Both occurrences are related and can be attributed to quip malfunction or mishandling, and impaired communication between the PF and the PNF. During the first occurrence we were climbing and were given a leveloff at 4000 ft. I failed to notice that we had arrived at 4000 ft. In addition, the altitude alerter was off and failed to alert the PF. The second occurrence took place while on descent. We were issued a restr to maintain FL310 65 NM east of gipper. We crossed at FL350 instead of FL310. Both occurrences were reason for discussion throughout which we developed better CRM procedures and the continuing flts were uneventful.

Original NASA ASRS Text

Title: A GULFSTREAM II FLC FAILED TO CROSS INTXN AT ASSIGNED ALT ON DSCNT INTO ORD.

Narrative: BOTH OCCURRENCES ARE RELATED AND CAN BE ATTRIBUTED TO QUIP MALFUNCTION OR MISHANDLING, AND IMPAIRED COM BTWN THE PF AND THE PNF. DURING THE FIRST OCCURRENCE WE WERE CLBING AND WERE GIVEN A LEVELOFF AT 4000 FT. I FAILED TO NOTICE THAT WE HAD ARRIVED AT 4000 FT. IN ADDITION, THE ALT ALERTER WAS OFF AND FAILED TO ALERT THE PF. THE SECOND OCCURRENCE TOOK PLACE WHILE ON DSCNT. WE WERE ISSUED A RESTR TO MAINTAIN FL310 65 NM E OF GIPPER. WE CROSSED AT FL350 INSTEAD OF FL310. BOTH OCCURRENCES WERE REASON FOR DISCUSSION THROUGHOUT WHICH WE DEVELOPED BETTER CRM PROCS AND THE CONTINUING FLTS WERE UNEVENTFUL.

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.