<< >> NASA ASRS Report 454060, November 1999

First officer of a B737-800 undershot altitude crossing restr on descent due to workload distraction and strong tailwind.

Attributes
ACN	454060
Time
Date	199911
Day	Fri
Local Time Of Day	1801 To 2400
Place
State Reference	RI
Altitude	msl bound lower : 10350 msl bound upper : 11000
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zbw.artcc
Operator	common carrier : air carrier
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : vacating altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 200 flight time total : 11000 flight time type : 400
ASRS Report	454060
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 231 flight time total : 15000 flight time type : 500
ASRS Report	454069
Events
Anomaly	altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : returned to assigned altitude
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Given clearance to cross pvd VOR at 10000 ft. Engaged VNAV, was distraction by other cockpit duties and missed crossing restr by 300-400 ft. High cockpit workload: checklist, approach brief, in range call, then unexpected high tailwind on descent.

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Original NASA ASRS Text

Title: FO OF A B737-800 UNDERSHOT ALT XING RESTR ON DSCNT DUE TO WORKLOAD DISTR AND STRONG TAILWIND.

Narrative: GIVEN CLRNC TO CROSS PVD VOR AT 10000 FT. ENGAGED VNAV, WAS DISTR BY OTHER COCKPIT DUTIES AND MISSED XING RESTR BY 300-400 FT. HIGH COCKPIT WORKLOAD: CHKLIST, APCH BRIEF, IN RANGE CALL, THEN UNEXPECTED HIGH TAILWIND ON DSCNT.

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.