Wrong departure flown from monterey, mexico.

Attributes
ACN	492970
Time
Date	200011
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : mty.vor
State Reference	FO
Altitude	msl single value : 18000
Environment
Flight Conditions	IMC
Light	Dawn
Aircraft 1
Controlling Facilities	tracon : mmty.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Route In Use	departure other departure sid : ovema. 1b
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 100 flight time total : 3800 flight time type : 1300
ASRS Report	492970
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : multi engine
Experience	flight time last 90 days : 30 flight time total : 1900 flight time type : 30
ASRS Report	491247
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllerb
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

Clearance cleared us for what I thought was the irbur 1 alpha departure off runway 11. This was the first officer's first trip into mexico. After takeoff, we flew the departure as published. After crossing the 043 degree radial off mty (ovema 1 alpha departure), ATC noticed we were past our departure point. He gave us a right turn to 070 degree heading to intercept the 043 degree radial (J29). At this point, I asked ATC what our assigned departure was. He replied the evema 1 alpha. All departure corridors in mty end in '1 alpha.' with the language barrier that exists, it's hard to understand the controllers. It would be easier to understand the clearance if the numbers on the end of the departure corridors were different like '3 bravo' or '6 delta,' etc. This would make it easier to catch a mistaken clearance. Supplemental information from acn 491247: next time I will ask the tower to spell out our departure.

Original NASA ASRS Text

Title: WRONG DEP FLOWN FROM MONTEREY, MEXICO.

Narrative: CLRNC CLRED US FOR WHAT I THOUGHT WAS THE IRBUR 1 ALPHA DEP OFF RWY 11. THIS WAS THE FO'S FIRST TRIP INTO MEXICO. AFTER TKOF, WE FLEW THE DEP AS PUBLISHED. AFTER XING THE 043 DEG RADIAL OFF MTY (OVEMA 1 ALPHA DEP), ATC NOTICED WE WERE PAST OUR DEP POINT. HE GAVE US A R TURN TO 070 DEG HDG TO INTERCEPT THE 043 DEG RADIAL (J29). AT THIS POINT, I ASKED ATC WHAT OUR ASSIGNED DEP WAS. HE REPLIED THE EVEMA 1 ALPHA. ALL DEP CORRIDORS IN MTY END IN '1 ALPHA.' WITH THE LANGUAGE BARRIER THAT EXISTS, IT'S HARD TO UNDERSTAND THE CTLRS. IT WOULD BE EASIER TO UNDERSTAND THE CLRNC IF THE NUMBERS ON THE END OF THE DEP CORRIDORS WERE DIFFERENT LIKE '3 BRAVO' OR '6 DELTA,' ETC. THIS WOULD MAKE IT EASIER TO CATCH A MISTAKEN CLRNC. SUPPLEMENTAL INFO FROM ACN 491247: NEXT TIME I WILL ASK THE TWR TO SPELL OUT OUR DEP.

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.