A LR60 on the teb 5 departure failed to turn to the 280 heading because the aircraft leveled at 1;45...

Attributes
ACN	844098
Time
Date	200907
Local Time Of Day	1201-1800
Place
Locale Reference	TEB.Airport
State Reference	NJ
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Learjet 60
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	SID TEB 5
Flight Plan	IFR
Component
Aircraft Component	Autoflight System
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 100 Flight Crew Total 3300 Flight Crew Type 1100
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 100 Flight Crew Total 5200 Flight Crew Type 1800
Events
Anomaly	Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types

Narrative:

Flight crew was given the teb 5 departure out of runway 24. The crew briefed the departure and set up the FMS appropriately. The procedure is to climb to 1;500 ft via runway heading; then turn right heading 280 degrees maintain 1;500 ft until passing 4.5 DME teb then climb and maintain 2;000 ft. Pilot flying executed a normal climb to 1;500 ft; however; due to turbulence the altimeter showed 1;450 ft; which did not prompt the FMS course change to 280 degrees; as 1;500 ft is a floating waypoint. Non-flying pilot noticed after a short period (5 seconds) that pilot flying was not turning. Pilot not flying prompted flying pilot to begin turn to 280 degrees. In the turn controller queried crew to start turn to 280 degrees. In addition; crew waited until approximately 6.8 DME to begin climb to 2;000 ft instead of 4.5 DME. While climbing to 2;000 ft controller assigned crew 3;000 ft. No further communication was given to crew other than stated. Crew could have done a better job at executing a right turn to 280 degrees upon reaching 1;500 ft. In addition; more attention should have been made by both crewmembers to execute a climb to 2;000 ft at 4.5 DME instead of 6.8 DME. One contributing factor was that the aircraft altitude of 1;450 ft did not trigger a course change in the FMS to heading 280 degrees as it occurs at 1;500 ft; thus delaying the pilots cue to begin the turn.

Original NASA ASRS Text

Title: A LR60 on the TEB 5 Departure failed to turn to the 280 heading because the aircraft leveled at 1;450 FT in turbulence and therefore did not trigger the autopilot to begin the turn. Crew then waited until 6.8 DME to climb to 2;000 FT instead of beginning at 4.5 DME.

Narrative: Flight crew was given the TEB 5 departure out of Runway 24. The crew briefed the departure and set up the FMS appropriately. The procedure is to climb to 1;500 FT via runway heading; then turn right heading 280 degrees maintain 1;500 FT until passing 4.5 DME TEB then climb and maintain 2;000 FT. Pilot flying executed a normal climb to 1;500 FT; however; due to turbulence the altimeter showed 1;450 FT; which did not prompt the FMS course change to 280 degrees; as 1;500 FT is a floating waypoint. Non-flying pilot noticed after a short period (5 seconds) that pilot flying was not turning. Pilot not flying prompted flying pilot to begin turn to 280 degrees. In the turn Controller queried crew to start turn to 280 degrees. In addition; crew waited until approximately 6.8 DME to begin climb to 2;000 FT instead of 4.5 DME. While climbing to 2;000 FT Controller assigned crew 3;000 FT. No further communication was given to crew other than stated. Crew could have done a better job at executing a right turn to 280 degrees upon reaching 1;500 FT. In addition; more attention should have been made by both crewmembers to execute a climb to 2;000 FT at 4.5 DME instead of 6.8 DME. One contributing factor was that the aircraft altitude of 1;450 FT did not trigger a course change in the FMS to heading 280 degrees as it occurs at 1;500 FT; thus delaying the pilots cue to begin the turn.

Data retrieved from NASA's ASRS site as of April 2012 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.

A LR60 on the teb 5 departure failed to turn to the 280 heading because the aircraft leveled at 1;450 ft in turbulence and therefore did not trigger the autopilot to begin the turn. Crew then waited until 6.8 DME to climb to 2;000 ft instead of beginning at 4.5 DME.