<< >> NASA ASRS Report 383470, October 1997

First officer of a widebody transport overshot assigned altitude and was alerted by the so and 2 seconds later ATC. He immediately descended back to assigned altitude.

Attributes
ACN	383470
Time
Date	199710
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : gfs
State Reference	CA
Altitude	msl bound lower : 22000 msl bound upper : 23000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	other other : other pilot : commercial pilot : instrument pilot : flight engineer
Experience	flight time last 90 days : 180 flight time total : 10000 flight time type : 1900
ASRS Report	383470
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera 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:

Just passing gfs VOR on oasis departure from las. Climbing to assigned FL230. In right turn to hec, flying using autoplt FMS navigation on GPS with VOR backup. New clearance was given to maintain FL220 and new route given to fly after gfs direct pmd sadde 7 arrival lax. Altitude was selected on FMS and armed. Captain started programming new route in GPS. I completed turn, selected pmd on VOR, and took out commercial charts to look for sadde 6 arrival lax when engineer called out altitude. Approximately 2 seconds later, center advised us to descend to FL220. Altitude alert prior to new assigned altitude was not heard by this pilot.

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Original NASA ASRS Text

Title: FO OF A WDB OVERSHOT ASSIGNED ALT AND WAS ALERTED BY THE SO AND 2 SECONDS LATER ATC. HE IMMEDIATELY DSNDED BACK TO ASSIGNED ALT.

Narrative: JUST PASSING GFS VOR ON OASIS DEP FROM LAS. CLBING TO ASSIGNED FL230. IN R TURN TO HEC, FLYING USING AUTOPLT FMS NAV ON GPS WITH VOR BACKUP. NEW CLRNC WAS GIVEN TO MAINTAIN FL220 AND NEW RTE GIVEN TO FLY AFTER GFS DIRECT PMD SADDE 7 ARR LAX. ALT WAS SELECTED ON FMS AND ARMED. CAPT STARTED PROGRAMMING NEW RTE IN GPS. I COMPLETED TURN, SELECTED PMD ON VOR, AND TOOK OUT COMMERCIAL CHARTS TO LOOK FOR SADDE 6 ARR LAX WHEN ENGINEER CALLED OUT ALT. APPROX 2 SECONDS LATER, CTR ADVISED US TO DSND TO FL220. ALT ALERT PRIOR TO NEW ASSIGNED ALT WAS NOT HEARD BY THIS PLT.

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.