Altitude deviation overshoot on climb out.

Attributes
ACN	303290
Time
Date	199505
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : cyn
State Reference	NJ
Altitude	msl bound lower : 17000 msl bound upper : 17400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : lax
Operator	common carrier : air carrier
Make Model Name	B747-C/F
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute airway : zdc
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 16700
ASRS Report	303290
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem 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:

We were cleared to climb to 17000 ft. I was flying on autoplt and had 17000 ft set in the altitude window. I believe the altitude select switch was in the select position. I observed the altimeter passing through 17200 ft. I disengaged the autoplt and took manual corrective action. The altitude reached a maximum of 17400 ft. Contributing factors were: 1) work load distrs, 2) ATC communications to confirm a rerte, 3) choppy air, 4) I believe the altitude select switched to off and I didn't detect it.

Original NASA ASRS Text

Title: ALTDEV OVERSHOOT ON CLBOUT.

Narrative: WE WERE CLRED TO CLB TO 17000 FT. I WAS FLYING ON AUTOPLT AND HAD 17000 FT SET IN THE ALT WINDOW. I BELIEVE THE ALT SELECT SWITCH WAS IN THE SELECT POS. I OBSERVED THE ALTIMETER PASSING THROUGH 17200 FT. I DISENGAGED THE AUTOPLT AND TOOK MANUAL CORRECTIVE ACTION. THE ALT REACHED A MAX OF 17400 FT. CONTRIBUTING FACTORS WERE: 1) WORK LOAD DISTRS, 2) ATC COMS TO CONFIRM A RERTE, 3) CHOPPY AIR, 4) I BELIEVE THE ALT SELECT SWITCHED TO OFF AND I DIDN'T DETECT IT.

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.