EMB145 flight crew is unable to meet crossing restr on the lga 9 departure.

Attributes
ACN	715077
Time
Date	200610
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lga.airport
State Reference	NY
Altitude	msl single value : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial
Route In Use	departure sid : coney climb (lga9)
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain
Experience	flight time last 90 days : 240 flight time total : 4000 flight time type : 3300
ASRS Report	715077
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	altitude deviation : crossing restriction not met non adherence : published procedure
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

Because of previous experience with the coney climb out of lga; when issued the departure with clearance delivery; I contacted clearance and told them 'we could not guarantee that we will be able to make the climb restr of the coney climb' as required by the chart for the laguardia nine departure. At takeoff at 44652 pounds (maximum of 44801 pounds); we departed using a static takeoff procedure to do our best to make the coney climb restr of crossing at or above 1500 ft at 2.5 DME from lga VOR; even though we had previously worked it out to not require the crossing restr with ATC. We were unable to make the crossing restr; passing 2.5 DME at around 1440 ft MSL. The aircraft did not accept climb power the first time the button was pressed; so we ended up having an extra 5-10 seconds at altitude-takeoff power longer than normal.

Original NASA ASRS Text

Title: EMB145 FLT CREW IS UNABLE TO MEET XING RESTR ON THE LGA 9 DEP.

Narrative: BECAUSE OF PREVIOUS EXPERIENCE WITH THE CONEY CLB OUT OF LGA; WHEN ISSUED THE DEP WITH CLRNC DELIVERY; I CONTACTED CLRNC AND TOLD THEM 'WE COULD NOT GUARANTEE THAT WE WILL BE ABLE TO MAKE THE CLB RESTR OF THE CONEY CLB' AS REQUIRED BY THE CHART FOR THE LAGUARDIA NINE DEP. AT TKOF AT 44652 LBS (MAX OF 44801 LBS); WE DEPARTED USING A STATIC TKOF PROC TO DO OUR BEST TO MAKE THE CONEY CLB RESTR OF XING AT OR ABOVE 1500 FT AT 2.5 DME FROM LGA VOR; EVEN THOUGH WE HAD PREVIOUSLY WORKED IT OUT TO NOT REQUIRE THE XING RESTR WITH ATC. WE WERE UNABLE TO MAKE THE XING RESTR; PASSING 2.5 DME AT AROUND 1440 FT MSL. THE ACFT DID NOT ACCEPT CLB PWR THE FIRST TIME THE BUTTON WAS PRESSED; SO WE ENDED UP HAVING AN EXTRA 5-10 SECONDS AT ALT-TKOF PWR LONGER THAN NORMAL.

Data retrieved from NASA's ASRS site as of January 2009 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.