A crj-900 first officer misunderstood clearance to maintain 250 KTS through 10;000 ft and climbed ab...

Attributes
ACN	971814
Time
Date	201109
Local Time Of Day	1201-1800
Place
Locale Reference	MEM.Airport
State Reference	TN
Environment
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 900 (CRJ900)
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Person 1
Function	First Officer Pilot Flying
Experience	Flight Crew Last 90 Days 12 Flight Crew Total 2600 Flight Crew Type 300
Events
Anomaly	Deviation - Altitude Overshoot Deviation - Procedural Clearance

Narrative:

We were cleared to 5;000 ft. I was hand flying the aircraft. In the climb; departure said; 'maintain 250 KTS through 10;000 ft.' I thought he said we were cleared to 10;000 ft; so I initiated the climb to 10;000 ft. The captain called to verify we were cleared to 10;000 ft. Departure said; 'negative; maintain 5;000 ft.' the aircraft reached an altitude of 5;500 ft. We descended down to 5;000 ft and continued the flight without further incident.I was busy hand-flying the aircraft. I misunderstood 'maintain 250 KTS through 10;000 ft' for being cleared to 10;000 ft. I should have verified the altitude prior to initiating the climb.

Original NASA ASRS Text

Title: A CRJ-900 First Officer misunderstood clearance to maintain 250 KTS through 10;000 FT and climbed above assigned altitude of 5;000 FT. ATC advised flight crew to return to 5;000 FT.

Narrative: We were cleared to 5;000 FT. I was hand flying the aircraft. In the climb; Departure said; 'Maintain 250 KTS through 10;000 FT.' I thought he said we were cleared to 10;000 FT; so I initiated the climb to 10;000 FT. The Captain called to verify we were cleared to 10;000 FT. Departure said; 'Negative; maintain 5;000 FT.' The aircraft reached an altitude of 5;500 FT. We descended down to 5;000 FT and continued the flight without further incident.I was busy hand-flying the aircraft. I misunderstood 'maintain 250 KTS through 10;000 FT' for being cleared to 10;000 FT. I should have verified the altitude prior to initiating the climb.

Data retrieved from NASA's ASRS site as of April 2012 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.

A crj-900 first officer misunderstood clearance to maintain 250 KTS through 10;000 ft and climbed above assigned altitude of 5;000 ft. ATC advised flight crew to return to 5;000 ft.