An EMB145 on climb out at 5000 ft had EICAS message 'main and backup trim inoperative.' forward yoke...

Attributes
ACN	727757
Time
Date	200702
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 5000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : zzz.tracon
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial
ASRS Report	727757
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : eicas warning message other flight crewa other flight crewb
Resolutory Action	other
Consequence	other other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance Chart Or Publication
Primary Problem	Aircraft

Narrative:

I was the PNF out of ZZZ at XA10Z on feb/mon/07. In the climb through 5000 ft out of ZZZ this morning; we received EICAS messages main and backup trim were inoperative. We leveled off at the assigned 8000 ft and notified ATC. After completing the checklist we were able to fix the trim problem and both trims were working properly. We notified company and continued to the destination. EICAS messages were our first warning. We both checked the trim on our yokes separately and checked the backup trim on the center console; finding them inoperative. Completed the QRH checklist and notified ATC and company. Preventive maintenance. Callback conversation with reporter revealed the following information: the first warning was an EICAS message 'main and backup trim inoperative.' forward yoke pressure was held by the captain to prevent rapid climbing. The QRH procedure of resetting the circuit breakers was the fix as both system became operative. The procedure must have restarted the stabilizer trim computer.

Original NASA ASRS Text

Title: AN EMB145 ON CLBOUT AT 5000 FT HAD EICAS MESSAGE 'MAIN AND BACKUP TRIM INOP.' FORWARD YOKE PRESSURE REQUIRED. RAN QRH CHKLIST; RESET CIRCUIT BREAKERS. MAIN AND BACKUP TRIM OK.

Narrative: I WAS THE PNF OUT OF ZZZ AT XA10Z ON FEB/MON/07. IN THE CLB THROUGH 5000 FT OUT OF ZZZ THIS MORNING; WE RECEIVED EICAS MESSAGES MAIN AND BACKUP TRIM WERE INOP. WE LEVELED OFF AT THE ASSIGNED 8000 FT AND NOTIFIED ATC. AFTER COMPLETING THE CHKLIST WE WERE ABLE TO FIX THE TRIM PROB AND BOTH TRIMS WERE WORKING PROPERLY. WE NOTIFIED COMPANY AND CONTINUED TO THE DEST. EICAS MESSAGES WERE OUR FIRST WARNING. WE BOTH CHKED THE TRIM ON OUR YOKES SEPARATELY AND CHKED THE BACKUP TRIM ON THE CTR CONSOLE; FINDING THEM INOP. COMPLETED THE QRH CHKLIST AND NOTIFIED ATC AND COMPANY. PREVENTIVE MAINT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE FIRST WARNING WAS AN EICAS MESSAGE 'MAIN AND BACKUP TRIM INOP.' FORWARD YOKE PRESSURE WAS HELD BY THE CAPT TO PREVENT RAPID CLBING. THE QRH PROC OF RESETTING THE CIRCUIT BREAKERS WAS THE FIX AS BOTH SYS BECAME OPERATIVE. THE PROC MUST HAVE RESTARTED THE STABILIZER TRIM COMPUTER.

Data retrieved from NASA's ASRS site as of January 2009 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.

An EMB145 on climb out at 5000 ft had EICAS message 'main and backup trim inoperative.' forward yoke pressure required. Ran QRH checklist; reset circuit breakers. Main and backup trim ok.