Altitude overshoot on climb.

Attributes
ACN	295526
Time
Date	199502
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dca
State Reference	DC
Altitude	msl bound lower : 17000 msl bound upper : 17400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : lft
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : direct enroute : on vectors 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 : 100 flight time total : 10000 flight time type : 30
ASRS Report	295526
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 220 flight time total : 9000 flight time type : 220
ASRS Report	295527
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

Cleared direct to buffer, entered into FMS but aircraft did not respond to command. While trying to determine reason why aircraft did not respond, aircraft climbed approximately 400 ft above assigned altitude. Autoplt did not engage. Aircraft was immediately hand flown back to assigned altitude of 17000 ft.

Original NASA ASRS Text

Title: ALT OVERSHOOT ON CLB.

Narrative: CLRED DIRECT TO BUFFER, ENTERED INTO FMS BUT ACFT DID NOT RESPOND TO COMMAND. WHILE TRYING TO DETERMINE REASON WHY ACFT DID NOT RESPOND, ACFT CLBED APPROX 400 FT ABOVE ASSIGNED ALT. AUTOPLT DID NOT ENGAGE. ACFT WAS IMMEDIATELY HAND FLOWN BACK TO ASSIGNED ALT OF 17000 FT.

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.