Flight crew of an medium large transport undershot assigned altitude during descent.

Attributes
ACN	301780
Time
Date	199504
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : den
State Reference	CO
Altitude	msl bound lower : 19000 msl bound upper : 19300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : den
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 : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 50 flight time total : 8000 flight time type : 50
ASRS Report	301780
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 other anomaly
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Missed crossing restr at tomsn by 300 ft and 30 KTS. Distracted by 2 rtes appearing in mcdu. Tried to clear second route and should have concentrated on restrs instead. Due in part, to being on new aircraft and unfamiliar with mcdu.

Original NASA ASRS Text

Title: FLC OF AN MLG UNDERSHOT ASSIGNED ALT DURING DSCNT.

Narrative: MISSED XING RESTR AT TOMSN BY 300 FT AND 30 KTS. DISTRACTED BY 2 RTES APPEARING IN MCDU. TRIED TO CLR SECOND RTE AND SHOULD HAVE CONCENTRATED ON RESTRS INSTEAD. DUE IN PART, TO BEING ON NEW ACFT AND UNFAMILIAR WITH MCDU.

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.