Altitude deviation altitude overshot in descent in air carrier widebody transport.

Attributes
ACN	312900
Time
Date	199508
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : lgb airport : lax
State Reference	CA
Altitude	msl bound lower : 8600 msl bound upper : 9000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lax
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	enroute : on vectors enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time total : 19000 flight time type : 500
ASRS Report	312900
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : became reoriented
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Altitude bust -- assigned 9000 ft descended through 9000 ft to about 8600 ft. First officer flying and looking for ATC called traffic, hand flying. Flight management computer did not alert busting altitude.

Original NASA ASRS Text

Title: ALTDEV ALT OVERSHOT IN DSCNT IN ACR WDB.

Narrative: ALT BUST -- ASSIGNED 9000 FT DSNDED THROUGH 9000 FT TO ABOUT 8600 FT. FO FLYING AND LOOKING FOR ATC CALLED TFC, HAND FLYING. FLT MGMNT COMPUTER DID NOT ALERT BUSTING ALT.

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.