An emb-145 flight crew experienced loss of thrust and loss of throttle control on an ILS approach an...

Attributes
ACN	815154
Time
Date	200811
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 200
Environment
Flight Conditions	IMC
Weather Elements	Fog
Light	Night
Aircraft 1
Controlling Facilities	tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : commercial
Experience	flight time last 90 days : 150 flight time total : 1650 flight time type : 1100
ASRS Report	815154
Events
Anomaly	other anomaly other
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

While on an ILS approach into ZZZ we lost control over our #1 engine. The aircraft's engine computer on the #1 engine commanded flight idle thrust and we were unable to produce any thrust from that engine manually with the thrust lever. This event occurred at approximately 200 ft. During a full ILS approach with the WX at minimums. I noticed that the plane started sinking around 200 ft but thought the captain was just descending towards the runway. Once we came to a complete stop our EICAS displayed the message 'E1 TCA inoperative.' we proceeded to the gate and wrote up the problem and contacted maintenance. Later that night a contract maintenance man showed up; then reset the fadec circuit breakers; did an engine run-up and wrote off the maintenance item as 'operations checks good.' the plane flew the next morning with passenger as normal. I believe that a malfunction of this sort; maintenance should not be able to just reset circuit breakers and continue on as normal. In this case a go around would have been single-engine in full IMC conditions. I hope this doesn't happen very often; but I'm afraid it will if nothing changes in the future. Thanks for your time.

Original NASA ASRS Text

Title: AN EMB-145 FLIGHT CREW EXPERIENCED LOSS OF THRUST AND LOSS OF THROTTLE CONTROL ON AN ILS APPROACH AND LANDED WITH THE ENGINE AT FLIGHT IDLE. CONTRACT MAINTENANCE CORRECTIVE ACTION WAS TO RESET FADEC CIRCUIT BREAKERS; RUN THE ENGINE; AND RELEASE IT FOR DEPARTURE.

Narrative: WHILE ON AN ILS APCH INTO ZZZ WE LOST CTL OVER OUR #1 ENG. THE ACFT'S ENG COMPUTER ON THE #1 ENG COMMANDED FLT IDLE THRUST AND WE WERE UNABLE TO PRODUCE ANY THRUST FROM THAT ENG MANUALLY WITH THE THRUST LEVER. THIS EVENT OCCURRED AT APPROX 200 FT. DURING A FULL ILS APCH WITH THE WX AT MINIMUMS. I NOTICED THAT THE PLANE STARTED SINKING AROUND 200 FT BUT THOUGHT THE CAPT WAS JUST DSNDING TOWARDS THE RWY. ONCE WE CAME TO A COMPLETE STOP OUR EICAS DISPLAYED THE MESSAGE 'E1 TCA INOP.' WE PROCEEDED TO THE GATE AND WROTE UP THE PROB AND CONTACTED MAINT. LATER THAT NIGHT A CONTRACT MAINT MAN SHOWED UP; THEN RESET THE FADEC CIRCUIT BREAKERS; DID AN ENG RUN-UP AND WROTE OFF THE MAINT ITEM AS 'OPS CHKS GOOD.' THE PLANE FLEW THE NEXT MORNING WITH PAX AS NORMAL. I BELIEVE THAT A MALFUNCTION OF THIS SORT; MAINT SHOULD NOT BE ABLE TO JUST RESET CIRCUIT BREAKERS AND CONTINUE ON AS NORMAL. IN THIS CASE A GAR WOULD HAVE BEEN SINGLE-ENG IN FULL IMC CONDITIONS. I HOPE THIS DOESN'T HAPPEN VERY OFTEN; BUT I'M AFRAID IT WILL IF NOTHING CHANGES IN THE FUTURE. THANKS FOR YOUR TIME.

Data retrieved from NASA's ASRS site as of May 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 emb-145 flight crew experienced loss of thrust and loss of throttle control on an ILS approach and landed with the engine at flight idle. Contract maintenance corrective action was to reset fadec circuit breakers; run the engine; and release it for departure.