Pilot deviation caused by misunderstanding an altitude assignment for a speed restr.

Attributes
ACN	296444
Time
Date	199502
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : crq
State Reference	CA
Altitude	msl bound lower : 25000 msl bound upper : 26500
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zoa
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
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 : 11000 flight time type : 200
ASRS Report	296444
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Climbing through FL240 with clearance to FL290, we were told to maintain FL250. The first officer thought FL250 was a speed restr and didn't get altitude in the window. A turn was requested distracting me enough to miss the FL250 restr. At FL265 ATC told us to return to FL260.

Original NASA ASRS Text

Title: PLTDEV CAUSED BY MISUNDERSTANDING AN ALT ASSIGNMENT FOR A SPD RESTR.

Narrative: CLBING THROUGH FL240 WITH CLRNC TO FL290, WE WERE TOLD TO MAINTAIN FL250. THE FO THOUGHT FL250 WAS A SPD RESTR AND DIDN'T GET ALT IN THE WINDOW. A TURN WAS REQUESTED DISTRACTING ME ENOUGH TO MISS THE FL250 RESTR. AT FL265 ATC TOLD US TO RETURN TO FL260.

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.