CL604 departure from teb climbs above assigned altitude.

Attributes
ACN	583959
Time
Date	200306
Day	Tue
Local Time Of Day	0601 To 1200
Place
State Reference	NJ
Altitude	msl bound lower : 1500 msl bound upper : 1900
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	general aviation : corporate
Make Model Name	Challenger CL604
Operating Under FAR Part	Part 91
Navigation In Use	other other vortac
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : teb 5
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : atp pilot : multi engine
Experience	flight time last 90 days : 37 flight time total : 4051 flight time type : 37
ASRS Report	583959
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Resolutory Action	flight crew : returned to assigned altitude
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Teterboro 5 SID requires departing aircraft to maintain 1500 ft MSL until passing teb 4.5 DME. Captain set 2000 ft in altitude selector on flight guidance panel intending to use VNAV function of FMS to comply with the 1500 ft restr. The flight guidance computer did not command a level off at 1500 ft as expected. The PF climbed to 1900 ft before descending to 1500 ft. Fortunately, no traffic conflicts resulted. Lesson learned: do not set the altitude selector any higher or lower then the altitude to which you are cleared until that altitude is captured. Then the next anticipated altitude on a SID or STAR may be selected.

Original NASA ASRS Text

Title: CL604 DEP FROM TEB CLBS ABOVE ASSIGNED ALT.

Narrative: TETERBORO 5 SID REQUIRES DEPARTING ACFT TO MAINTAIN 1500 FT MSL UNTIL PASSING TEB 4.5 DME. CAPT SET 2000 FT IN ALT SELECTOR ON FLT GUIDANCE PANEL INTENDING TO USE VNAV FUNCTION OF FMS TO COMPLY WITH THE 1500 FT RESTR. THE FLT GUIDANCE COMPUTER DID NOT COMMAND A LEVEL OFF AT 1500 FT AS EXPECTED. THE PF CLBED TO 1900 FT BEFORE DSNDING TO 1500 FT. FORTUNATELY, NO TFC CONFLICTS RESULTED. LESSON LEARNED: DO NOT SET THE ALT SELECTOR ANY HIGHER OR LOWER THEN THE ALT TO WHICH YOU ARE CLRED UNTIL THAT ALT IS CAPTURED. THEN THE NEXT ANTICIPATED ALT ON A SID OR STAR MAY BE SELECTED.

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.