Altitude deviation altitude crossing restr not met.

Attributes
ACN	306013
Time
Date	199505
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ard
State Reference	PA
Altitude	msl bound lower : 13000 msl bound upper : 15300
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc tower : bkx
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 130 flight time total : 10000 flight time type : 6000
ASRS Report	306013
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : unable other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Pilot Deviation Operational Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

Aircraft was cleared to cross somto intersection at 13000 ft. This information was loaded into the FMS and a VNAV descent was initiated. Subsequently a descent to 11000 ft was received and loaded into the FMS while VNAV descent was continued. The FMS failed to make the 13000 ft restr at somto intersection and was not noted by the captain until questioned by ZNY. Somto intersection was crossed at 15300 ft and ard at 11000 ft. Once clearance to 11000 ft was received, I perceived that the 13000 ft restr was lifted. This was not so! Human error prevailed.

Original NASA ASRS Text

Title: ALTDEV ALT XING RESTR NOT MET.

Narrative: ACFT WAS CLRED TO CROSS SOMTO INTXN AT 13000 FT. THIS INFO WAS LOADED INTO THE FMS AND A VNAV DSCNT WAS INITIATED. SUBSEQUENTLY A DSCNT TO 11000 FT WAS RECEIVED AND LOADED INTO THE FMS WHILE VNAV DSCNT WAS CONTINUED. THE FMS FAILED TO MAKE THE 13000 FT RESTR AT SOMTO INTXN AND WAS NOT NOTED BY THE CAPT UNTIL QUESTIONED BY ZNY. SOMTO INTXN WAS CROSSED AT 15300 FT AND ARD AT 11000 FT. ONCE CLRNC TO 11000 FT WAS RECEIVED, I PERCEIVED THAT THE 13000 FT RESTR WAS LIFTED. THIS WAS NOT SO! HUMAN ERROR PREVAILED.

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.