<< >> NASA ASRS Report 298300, March 1995

An air carrier did not meet a speed restr on an arrival route. The autoflt VNAV system, had dropped out while the crew was briefing for the approach.

Attributes
ACN	298300
Time
Date	199503
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : bpr airport : dfw
State Reference	TX
Altitude	msl bound lower : 11000 msl bound upper : 11000
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star enroute airway : dfw
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	298300
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	non adherence : clearance non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

At 11000 ft VNAV dropped out while briefing for approach. By the time we realized we were close to pivit intersection and above 250 KTS started manual slowdown to 250 KTS crossed arina at 210.

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Original NASA ASRS Text

Title: AN ACR DID NOT MEET A SPD RESTR ON AN ARR RTE. THE AUTOFLT VNAV SYS, HAD DROPPED OUT WHILE THE CREW WAS BRIEFING FOR THE APCH.

Narrative: AT 11000 FT VNAV DROPPED OUT WHILE BRIEFING FOR APCH. BY THE TIME WE REALIZED WE WERE CLOSE TO PIVIT INTXN AND ABOVE 250 KTS STARTED MANUAL SLOWDOWN TO 250 KTS CROSSED ARINA AT 210.

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.