B737-200 crew departing ind runway 23L not sure departure procedure was flown correctly.

Attributes
ACN	486425
Time
Date	200009
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ind.airport
State Reference	IN
Altitude	agl single value : 400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ind.tower
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : initial
Route In Use	departure sid : dawnn two departure
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : private pilot : multi engine pilot : commercial pilot : atp pilot : instrument
Experience	flight time last 90 days : 210 flight time total : 4000 flight time type : 1500
ASRS Report	486425
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	non adherence : published procedure
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

On takeoff, our clearance was 'cleared for takeoff on runway 23L, fly heading 210 degrees.' we turned to a heading of 210 degrees at 400 ft AGL as is standard at most airports when given a heading on takeoff. After further review of the departure procedures for the dawnn 2 departure, we believe we should have waited until 2.3 DME and 1200 ft prior to turning to a heading of 210 degrees. The dawnn 2 states 'climb on runway heading 227 degrees until ifvj 2.3 and 1200 ft or above, then fly assigned heading of 210 degrees, 227 degrees, or 242 degrees.' this is confusing since most of the time a heading cancels the departure procedures. We believe that if a different verbiage is used by tower like 'fly the dawnn 2 heading assigned is 210 degrees' it would clarify the clearance to follow.

Original NASA ASRS Text

Title: B737-200 CREW DEPARTING IND RWY 23L NOT SURE DEP PROC WAS FLOWN CORRECTLY.

Narrative: ON TKOF, OUR CLRNC WAS 'CLRED FOR TKOF ON RWY 23L, FLY HDG 210 DEGS.' WE TURNED TO A HDG OF 210 DEGS AT 400 FT AGL AS IS STANDARD AT MOST ARPTS WHEN GIVEN A HDG ON TKOF. AFTER FURTHER REVIEW OF THE DEP PROCS FOR THE DAWNN 2 DEP, WE BELIEVE WE SHOULD HAVE WAITED UNTIL 2.3 DME AND 1200 FT PRIOR TO TURNING TO A HDG OF 210 DEGS. THE DAWNN 2 STATES 'CLB ON RWY HDG 227 DEGS UNTIL IFVJ 2.3 AND 1200 FT OR ABOVE, THEN FLY ASSIGNED HDG OF 210 DEGS, 227 DEGS, OR 242 DEGS.' THIS IS CONFUSING SINCE MOST OF THE TIME A HDG CANCELS THE DEP PROCS. WE BELIEVE THAT IF A DIFFERENT VERBIAGE IS USED BY TWR LIKE 'FLY THE DAWNN 2 HDG ASSIGNED IS 210 DEGS' IT WOULD CLARIFY THE CLRNC TO FOLLOW.

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.