An air carrier crew departed dca on the hammi one RNAV departure but were uncertain about their rout...

Attributes
ACN	949924
Time
Date	201105
Local Time Of Day	0601-1200
Place
Locale Reference	DCA.Airport
State Reference	DC
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Medium Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Route In Use	SID HAMMI ONE
Flight Plan	IFR
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 225 Flight Crew Total 10000 Flight Crew Type 6200
Events
Anomaly	ATC Issue All Types Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types

Narrative:

Received clearance of depart south on the hammi one departure aml. We were not given the jmysu transition so we did not enter it in the FMS per company policy. We were given a takeoff clearance to maintain visual with a departing airbus in front of us. At 500 ft AGL; we engaged the autopilot to follow the RNAV departure per company policy. We were loosing space between the airbus and could not get a call into ATC because of frequency congestion. Once at hammi; the FMS was out of places to go because we were not given the jmysu transition so it went to aml. As soon as I could get a word in; I informed ATC that we were going to aml as per our clearance and they gave us a heading and informed us that we were not supposed to go to aml. This is a new departure and we were not familiar with the procedure; but I feel ATC's clearance was very vague as well. It was early in the morning and we had a predawn wake up call so it was not the ideal conditions to be doing a new RNAV departure.

Original NASA ASRS Text

Title: An Air Carrier crew departed DCA on the HAMMI ONE RNAV Departure but were uncertain about their routing after HAMMI because the preflight clearance did not contain the JMYSU transition and so incorrectly the FMS transitioned direct AML.

Narrative: Received Clearance of depart south on the HAMMI ONE Departure AML. We were not given the JMYSU transition so we did not enter it in the FMS per Company policy. We were given a takeoff clearance to maintain visual with a departing Airbus in front of us. At 500 FT AGL; we engaged the autopilot to follow the RNAV departure per Company policy. We were loosing space between the Airbus and could not get a call into ATC because of frequency congestion. Once at HAMMI; the FMS was out of places to go because we were not given the JMYSU transition so it went to AML. As soon as I could get a word in; I informed ATC that we were going to AML as per our clearance and they gave us a heading and informed us that we were not supposed to go to AML. This is a new departure and we were not familiar with the procedure; but I feel ATC's clearance was very vague as well. It was early in the morning and we had a predawn wake up call so it was not the ideal conditions to be doing a new RNAV departure.

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.

An air carrier crew departed dca on the hammi one RNAV departure but were uncertain about their routing after hammi because the preflight clearance did not contain the jmysu transition and so incorrectly the FMS transitioned direct aml.