CRJ200 flight crew has track/heading deviations during the lga 9 departure.

Attributes
ACN	719039
Time
Date	200611
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lga.airport
State Reference	NY
Altitude	msl single value : 5000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet 200 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : lga9
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 200 flight time total : 9700 flight time type : 4200
ASRS Report	719039
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 240 flight time total : 8000 flight time type : 5000
ASRS Report	719042
Events
Anomaly	non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued advisory controller : provided flight assist flight crew : returned to intended or assigned course
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Chart Or Publication ATC Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Departing lga for chs via lga 9 departure coney climb. Prior takeoff clearance; after line up; tower communications were broken. Tower had just cleared us off 13 non-standard departure; runway heading to 5000 ft. We heard runway heading cleared to takeoff; 5000 ft. Thinking we were cleared to 5000 ft; tower corrected us upon readback and the instrument departure was flown as published. However; we were in dg mode and then expected a vector to cri as we thought. So we departed white data with the cri 223 inbound intercept. During climb and prior to intercept; we got a comp mon message and a shift (dr). We were going green data when center/departure said we were slipping left of course; please correct. We complied. No mention to us otherwise. A lot of things came at once and a strange departure clearance which was corrected; but we responded well.

Original NASA ASRS Text

Title: CRJ200 FLT CREW HAS TRACK/HDG DEVS DURING THE LGA 9 DEP.

Narrative: DEPARTING LGA FOR CHS VIA LGA 9 DEP CONEY CLB. PRIOR TKOF CLRNC; AFTER LINE UP; TWR COMMUNICATIONS WERE BROKEN. TWR HAD JUST CLRED US OFF 13 NON-STANDARD DEP; RWY HDG TO 5000 FT. WE HEARD RWY HDG CLRED TO TKOF; 5000 FT. THINKING WE WERE CLEARED TO 5000 FT; TOWER CORRECTED US UPON READBACK AND THE INSTRUMENT DEP WAS FLOWN AS PUBLISHED. HOWEVER; WE WERE IN DG MODE AND THEN EXPECTED A VECTOR TO CRI AS WE THOUGHT. SO WE DEPARTED WHITE DATA WITH THE CRI 223 INBOUND INTERCEPT. DURING CLB AND PRIOR TO INTERCEPT; WE GOT A COMP MON MSG AND A SHIFT (DR). WE WERE GOING GREEN DATA WHEN CTR/DEP SAID WE WERE SLIPPING L OF COURSE; PLEASE CORRECT. WE COMPLIED. NO MENTION TO US OTHERWISE. A LOT OF THINGS CAME AT ONCE AND A STRANGE DEP CLRNC WHICH WAS CORRECTED; BUT WE RESPONDED WELL.

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.