Altitude crossing restr missed, altitude deviation altitude undershot.

Attributes
ACN	292322
Time
Date	199412
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pit
State Reference	PA
Altitude	msl bound lower : 10000 msl bound upper : 12500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : lga
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent other
Route In Use	enroute airway : zob
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer pilot : cfi
Experience	flight time last 90 days : 200 flight time total : 12000 flight time type : 1200
ASRS Report	292322
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
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 : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were told to cross grace at 10000 ft. Later, center told us to slow to 230 KIAS. The captain was under the impression that the later clearance canceled the crossing restrs. I disagreed but was overruled. He crossed grace at about 12500 ft. No traffic conflict was involved.

Original NASA ASRS Text

Title: ALT XING RESTR MISSED, ALTDEV ALT UNDERSHOT.

Narrative: WE WERE TOLD TO CROSS GRACE AT 10000 FT. LATER, CTR TOLD US TO SLOW TO 230 KIAS. THE CAPT WAS UNDER THE IMPRESSION THAT THE LATER CLRNC CANCELED THE XING RESTRS. I DISAGREED BUT WAS OVERRULED. HE CROSSED GRACE AT ABOUT 12500 FT. NO TFC CONFLICT WAS INVOLVED.

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.