Narrative:

After performing the 'after takeoff' checklist flow at 600 ft AGL; I noticed the right engine itt was in the red. I notified the captain and the right thrust lever was reduced to within limits. I then noticed the red engine computer light on the mws. I found that the right engine computer switch was in the off position. I returned the switch to the correct position and we returned the thrust lever back to normal operation. The engine indications were now normal; so we continued to our destination. Once there; the captain notified the acp and maintenance of the situation. I believe the cause of this event was that while completing the 'after takeoff' checklist; I accidently bumped the right engine computer switch to the off position. Turning on the engine synch at such a critical time is not appropriate. A change of this part of the checklist is in order. Also; the proximity of the synch switch to the right engine computer switch is of poor design. This switch should be moved or redesigned; so that it is different than the engine computer switch.callback conversation with reporter revealed the following information: the reporter states that his company's requirement to complete the after takeoff checklist flow at 600 ft was a major contributor to his error. This particular takeoff was from a high altitude airport in mountainous terrain at night. Completed the checklist flow that included turning the engine synchronizer on at a very busy time can lead to errors as in this case. A contributing factor was the engine synchronizer switch position being identical and adjacent to the left and right synch (digital electronic engine control) switches; which are also three position switches. Because of other tasks he did not look up to select the engine synchronizer switch and instead turned right engine synch off causing the over temp.

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Original NASA ASRS Text

Title: An HS125-800 pilot turned the digital electronic engine control (SYNCH) switch off at 600 ft after takeoff causing an over temp. the SYNCH switch is a three position switch next to an identical engine synchronizer switch which the pilot intended to turn on.

Narrative: After performing the 'after takeoff' checklist flow at 600 ft AGL; I noticed the right engine ITT was in the red. I notified the Captain and the right thrust lever was reduced to within limits. I then noticed the red engine computer light on the MWS. I found that the right engine computer switch was in the off position. I returned the switch to the correct position and we returned the thrust lever back to normal operation. The engine indications were now normal; so we continued to our destination. Once there; the Captain notified the ACP and maintenance of the situation. I believe the cause of this event was that while completing the 'after takeoff' checklist; I accidently bumped the right engine computer switch to the off position. Turning on the engine SYNCH at such a critical time is not appropriate. A change of this part of the checklist is in order. Also; the proximity of the SYNCH switch to the right engine computer switch is of poor design. This switch should be moved or redesigned; so that it is different than the engine computer switch.Callback conversation with reporter revealed the following information: The reporter states that his company's requirement to complete the after takeoff checklist flow at 600 ft was a major contributor to his error. This particular takeoff was from a high altitude airport in mountainous terrain at night. Completed the checklist flow that included turning the engine synchronizer on at a very busy time can lead to errors as in this case. A contributing factor was the engine synchronizer switch position being identical and adjacent to the left and right SYNCH (digital electronic engine control) switches; which are also three position switches. Because of other tasks he did not look up to select the engine synchronizer switch and instead turned right engine SYNCH off causing the over temp.

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.