<< >> NASA ASRS Report 1042882, October 2012

Air carrier first officer reports confusion descending into MMMX over RNAV descent criteria for ICAO vs. FAA. The 160 KT speed restriction on the ILS 5R approach is also overlooked.

Attributes
ACN	1042882
Time
Date	201210
Place
Locale Reference	MMMX.Airport
State Reference	FO
Aircraft 1
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Person 1
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Deviation - Speed All Types

Narrative:

Flight operating on an ICAO descent via clearance; ATC issued a new altitude to descend to but did not specifically cancel star altitude constraints. Confused with the differences between the FAA and ICAO descend via clearance requirements (FAA needs to re-issue descent via for constraints to be in effect; ICAO does not) we descended below the star constraints. Additionally; later on the flight; during approach; the pilot flying failed to operate below the speed limits [160] established for mexico's airspace and for the runway 5R ILS approach.

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Original NASA ASRS Text

Title: Air Carrier First Officer reports confusion descending into MMMX over RNAV descent criteria for ICAO vs. FAA. The 160 KT speed restriction on the ILS 5R approach is also overlooked.

Narrative: Flight operating on an ICAO descent via clearance; ATC issued a new altitude to descend to but did not specifically cancel star altitude constraints. Confused with the differences between the FAA and ICAO descend via clearance requirements (FAA needs to re-issue descent via for constraints to be in effect; ICAO does not) we descended below the star constraints. Additionally; later on the flight; during approach; the pilot flying failed to operate below the speed limits [160] established for Mexico's airspace and for the Runway 5R ILS approach.

Data retrieved from NASA's ASRS site as of July 2013 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.