LJ23 crew had wrong DME tuned in and missed crossing restr.

Attributes
ACN	496770
Time
Date	200101
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : las.airport
State Reference	NY
Altitude	msl bound lower : 11000 msl bound upper : 16000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : l30.tracon
Operator	general aviation : corporate
Make Model Name	Learjet 23
Operating Under FAR Part	Part 91
Navigation In Use	Other
Flight Phase	descent : vacating altitude
Route In Use	arrival star : nontn 3
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 60 flight time total : 17000 flight time type : 8000
ASRS Report	496770
Person 2
Affiliation	other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flying a very old and very basic learjet 23 with very basic navigation equipment. We were cleared to cross phigg intersection at 11000 ft and 250 KIAS. We were using the DME to identify phigg (3 DME off bld). The DME was the old type where you must tune it to the frequency -- it does not tune off of #1 or #2 navigation. We had it tuned to las and missed our altitude by approximately 5000 ft. ATC brought this to our attention and I told them what happened. The distances were close enough that it wasn't obvious we had the wrong frequency. Obviously a result of not paying close attention. The GPS was so basic we weren't using it as a backup for distance.

Original NASA ASRS Text

Title: LJ23 CREW HAD WRONG DME TUNED IN AND MISSED XING RESTR.

Narrative: FLYING A VERY OLD AND VERY BASIC LEARJET 23 WITH VERY BASIC NAV EQUIP. WE WERE CLRED TO CROSS PHIGG INTXN AT 11000 FT AND 250 KIAS. WE WERE USING THE DME TO IDENT PHIGG (3 DME OFF BLD). THE DME WAS THE OLD TYPE WHERE YOU MUST TUNE IT TO THE FREQ -- IT DOES NOT TUNE OFF OF #1 OR #2 NAV. WE HAD IT TUNED TO LAS AND MISSED OUR ALT BY APPROX 5000 FT. ATC BROUGHT THIS TO OUR ATTN AND I TOLD THEM WHAT HAPPENED. THE DISTANCES WERE CLOSE ENOUGH THAT IT WASN'T OBVIOUS WE HAD THE WRONG FREQ. OBVIOUSLY A RESULT OF NOT PAYING CLOSE ATTN. THE GPS WAS SO BASIC WE WEREN'T USING IT AS A BACKUP FOR DISTANCE.

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.