<< >> NASA ASRS Report 1000652, March 2012

CRJ900 flight crew received an EICAS caution message for 'ib spoilers' and 'ib flight spoilers' at 100 KTS during takeoff and rejects. The roll control PCU was found to be jammed with the right wing inboard spoiler in the uncommanded full up position.

Attributes
ACN	1000652
Time
Date	201203
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 900 (CRJ900)
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Spoiler System
Person 1
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 150 Flight Crew Total 9300 Flight Crew Type 7700
Person 2
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 225 Flight Crew Total 24000 Flight Crew Type 8000
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Normal taxi out and line up on runway. Normal takeoff roll up to 100 KTS call. At same time or just after 100 KTS call; EICAS ED1 displayed 'ib spoilers' and 'ib flight spoilers' caution messages accompanied by 'caution chime'. Captain called 'abort' and I notified ATC of abort. We turned off at taxiway C. Held position while captain notified passengers and flight attendants of situation and to remain seated. Coordinated return to gate with ground control and company.maintenance personnel ran tests and determined the PCU was bad and needed to be replaced.

Related reports:

• A B737-300 on takeoff received 2 uncommanded rudder inputs. ...
• A B747-200 received uncommanded yaw damper inputs. The crew ...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: CRJ900 flight crew received an EICAS caution message for 'IB SPOILERS' and 'IB FLT SPOILERS' at 100 KTS during takeoff and rejects. The roll control PCU was found to be jammed with the right wing inboard spoiler in the uncommanded full up position.

Narrative: Normal taxi out and line up on runway. Normal takeoff roll up to 100 KTS call. At same time or just after 100 KTS call; EICAS ED1 displayed 'IB SPOILERS' and 'IB FLT SPOILERS' caution messages accompanied by 'Caution chime'. Captain called 'abort' and I notified ATC of abort. We turned off at Taxiway C. Held position while Captain notified passengers and flight attendants of situation and to remain seated. Coordinated return to gate with ground control and company.Maintenance personnel ran tests and determined the PCU was bad and needed to be replaced.

Data retrieved from NASA's ASRS site as of July 2013 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.