<< >> NASA ASRS Report 362810, March 1997

PIC of a DA50 allows an overshoot during climb when distracted with a problem with the flight management system. Didn't hear the altitude alerter alarm at all. Had 100 hours with EFIS FMS type DA50.

Attributes
ACN	362810
Time
Date	199703
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : den
State Reference	CO
Altitude	msl bound lower : 29000 msl bound upper : 30500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv
Operator	common carrier : air carrier
Make Model Name	Falcon 50
Operating Under FAR Part	Part 91
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 11000 flight time type : 1100
ASRS Report	362810
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : published procedure 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 other

Narrative:

Leveloff altitude was 29000 ft. Prior to that, there was a discrepancy in the FMS's with regard to the next waypoint. I was in the left seat and became involved in the resolution of the navigation problem. The altitude select somehow became disengaged and we went to 30500 ft before I noticed! Classic case of not flying the aircraft with both heads down setting the FMS. Contributing factors: less than 100 hours experience with this aircraft, with EFIS and different flight director/autoplt, there may also be a malfunction in the altitude alert system.

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Original NASA ASRS Text

Title: PIC OF A DA50 ALLOWS AN OVERSHOOT DURING CLB WHEN DISTRACTED WITH A PROB WITH THE FLT MGMNT SYS. DIDN'T HEAR THE ALT ALERTER ALARM AT ALL. HAD 100 HRS WITH EFIS FMS TYPE DA50.

Narrative: LEVELOFF ALT WAS 29000 FT. PRIOR TO THAT, THERE WAS A DISCREPANCY IN THE FMS'S WITH REGARD TO THE NEXT WAYPOINT. I WAS IN THE L SEAT AND BECAME INVOLVED IN THE RESOLUTION OF THE NAV PROB. THE ALT SELECT SOMEHOW BECAME DISENGAGED AND WE WENT TO 30500 FT BEFORE I NOTICED! CLASSIC CASE OF NOT FLYING THE ACFT WITH BOTH HEADS DOWN SETTING THE FMS. CONTRIBUTING FACTORS: LESS THAN 100 HRS EXPERIENCE WITH THIS ACFT, WITH EFIS AND DIFFERENT FLT DIRECTOR/AUTOPLT, THERE MAY ALSO BE A MALFUNCTION IN THE ALT ALERT SYS.

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.