Air carrier misses turn given on SID due reference noise abatement chart.

Attributes
ACN	206185
Time
Date	199203
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lga
State Reference	NY
Altitude	msl bound lower : 0 msl bound upper : 5000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : initial
Route In Use	departure sid : sid
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 100 flight time total : 2700 flight time type : 100
ASRS Report	206185
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : instrument pilot : commercial pilot : flight engineer
Experience	flight time last 90 days : 120 flight time type : 120
ASRS Report	206327
Events
Anomaly	non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Laguardia 4 departure whitestone climb by reference the special pages noise abatement departure procedure (which depicted all SID information except turn 2.5 DME for 040 degree heading) instead of the actual SID, and due to unfamiliarity of whitestone climb procedure of laguardia 4 SID, I mistakenly delayed the turn to 040 degree until 5 DME. I steepened the turn to minimize deviation as requested by departure ATC. No conflict was noted by departure control, visually, or on TCASII 10 mi range. Human factors consideration: when special page for noise abatement depicts nearly the entire SID instead of just stating the noise abatement power settings/clean-up altitudes. It might be mistakenly used as the primary SID reference.

Original NASA ASRS Text

Title: ACR MISSES TURN GIVEN ON SID DUE REF NOISE ABATEMENT CHART.

Narrative: LAGUARDIA 4 DEP WHITESTONE CLB BY REF THE SPECIAL PAGES NOISE ABATEMENT DEP PROC (WHICH DEPICTED ALL SID INFO EXCEPT TURN 2.5 DME FOR 040 DEG HDG) INSTEAD OF THE ACTUAL SID, AND DUE TO UNFAMILIARITY OF WHITESTONE CLB PROC OF LAGUARDIA 4 SID, I MISTAKENLY DELAYED THE TURN TO 040 DEG UNTIL 5 DME. I STEEPENED THE TURN TO MINIMIZE DEV AS REQUESTED BY DEP ATC. NO CONFLICT WAS NOTED BY DEP CTL, VISUALLY, OR ON TCASII 10 MI RANGE. HUMAN FACTORS CONSIDERATION: WHEN SPECIAL PAGE FOR NOISE ABATEMENT DEPICTS NEARLY THE ENTIRE SID INSTEAD OF JUST STATING THE NOISE ABATEMENT PWR SETTINGS/CLEAN-UP ALTS. IT MIGHT BE MISTAKENLY USED AS THE PRIMARY SID REF.

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.