<< >> NASA ASRS Report 852990, September 2009

B737 captain reports being issued a crossing restriction but fails to start down in in a timely manner. Error is noted by ATC.

Attributes
ACN	852990
Time
Date	200909
Local Time Of Day	1201-1800
Place
Locale Reference	BNA.Airport
State Reference	TN
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	MCP
Person 1
Function	Captain
Experience	Flight Crew Last 90 Days 297
Events
Anomaly	Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Clearance

Narrative:

We were given a crossing restriction 100 NM west of ghm VOR at FL350 from FL380. I thought the aircraft would make the restriction after programming the FMC. I think now that VNAV was not armed. Both pilots got involved with seating passengers and communicating with F/as regarding turbulence; but we did not start the descent until ATC called and told us we had missed the crossing restriction. All pilots must monitor the automated functions and make sure that restrictions are met regardless of other distractions.

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Original NASA ASRS Text

Title: B737 Captain reports being issued a crossing restriction but fails to start down in in a timely manner. Error is noted by ATC.

Narrative: We were given a crossing restriction 100 NM west of GHM VOR at FL350 from FL380. I thought the aircraft would make the restriction after programming the FMC. I think now that VNAV was not armed. Both Pilots got involved with seating passengers and communicating with F/As regarding turbulence; but we did not start the descent until ATC called and told us we had missed the crossing restriction. All pilots must monitor the automated functions and make sure that restrictions are met regardless of other distractions.

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.