Altitude deviation altitude undershot in descent. Altitude crossing restr not met.

Attributes
ACN	320420
Time
Date	199511
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ftg
State Reference	MO
Altitude	msl bound lower : 15000 msl bound upper : 17000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc
Operator	common carrier : air carrier
Make Model Name	Citation II S2/Bravo
Operating Under FAR Part	Part 91
Flight Phase	cruise other descent other
Route In Use	arrival other arrival star : star enroute airway : zkc enroute other
Flight Plan	IFR
Aircraft 2
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 60 flight time total : 6000 flight time type : 1000
ASRS Report	320420
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance non adherence : published procedure other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Clearance was to cross 11 mi west of ftz VOR at 15000 ft. I was at 22000 ft, descent was pilot discretion. I had planned my descent, so as to cross 11 mi west of ftz at 15000 ft. My VOR receiver #1 was on ftz VOR. The #2 VOR was on stl. About 20 mi west of ftz, the controller advised me to start my descent now. I realized I could not make the crossing and so advised center. I started my descent immediately and was then cleared to 17000 ft. The problem was caused by my inattention. I was using the #2 VOR for my descent planning instead of the #1 VOR. A very basic mistake caused by a lack of concentration.

Original NASA ASRS Text

Title: ALTDEV ALT UNDERSHOT IN DSCNT. ALT XING RESTR NOT MET.

Narrative: CLRNC WAS TO CROSS 11 MI W OF FTZ VOR AT 15000 FT. I WAS AT 22000 FT, DSCNT WAS PLT DISCRETION. I HAD PLANNED MY DSCNT, SO AS TO CROSS 11 MI W OF FTZ AT 15000 FT. MY VOR RECEIVER #1 WAS ON FTZ VOR. THE #2 VOR WAS ON STL. ABOUT 20 MI W OF FTZ, THE CTLR ADVISED ME TO START MY DSCNT NOW. I REALIZED I COULD NOT MAKE THE XING AND SO ADVISED CTR. I STARTED MY DSCNT IMMEDIATELY AND WAS THEN CLRED TO 17000 FT. THE PROB WAS CAUSED BY MY INATTENTION. I WAS USING THE #2 VOR FOR MY DSCNT PLANNING INSTEAD OF THE #1 VOR. A VERY BASIC MISTAKE CAUSED BY A LACK OF CONCENTRATION.

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.