Captain of a cargo B727 overshot cruise altitude during climb due to not setting autoplt capture mode. Return to assigned altitude was made after warning from the aircraft's altitude alert.

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Attributes
ACN	445410
Time
Date	199908
Day	Wed
Local Time Of Day	0001 To 0600
Place
Locale Reference	navaid : bdl.vortac
State Reference	CT
Altitude	msl bound lower : 35000 msl bound upper : 35350
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zbw.artcc
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	climbout other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 60 flight time total : 7300 flight time type : 830
ASRS Report	445410
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	aircraft equipment : altitude alert
Resolutory Action	flight crew : returned to assigned altitude none taken : anomaly accepted
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Went through FL350 by 350 ft. Altitude alerter alerted us and ascent was stopped. Leveled aircraft at assigned altitude FL350. Deviation caused by failure to select altitude capture on autoplt control panel.

Original NASA ASRS Text

Title: CAPT OF A CARGO B727 OVERSHOT CRUISE ALT DURING CLB DUE TO NOT SETTING AUTOPLT CAPTURE MODE. RETURN TO ASSIGNED ALT WAS MADE AFTER WARNING FROM THE ACFT'S ALT ALERT.

Narrative: WENT THROUGH FL350 BY 350 FT. ALT ALERTER ALERTED US AND ASCENT WAS STOPPED. LEVELED ACFT AT ASSIGNED ALT FL350. DEV CAUSED BY FAILURE TO SELECT ALT CAPTURE ON AUTOPLT CTL PANEL.

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.