A LR35's right engine fire warning alerted during climb out. When thrust was reduced the warning cea...

Narrative:

In the evening after takeoff with 2 nurses and one patient on board; in the climb; the right hand engine fire warning light came on. Confirmed it was right engine with sic (second in command); I pulled back power on the engine as the memory items require. As the itt on the right-hand engine got below 800 degrees; the fire light extinguished. It was not on for more than ten seconds from noticing it until it went out. The checklist suggests bringing the engine to idle and flying on the other engine and land as soon as practical. However all engine indications were normal. After conferring with the sic we decided to continue to our destination if the fire light stayed out with the engine at 795 itt. The light did not come on again for the rest of the flight. We continued without incident for the rest of the flight. We had two good engines; and one malfunctioning indication system which malfunctioned once and did not reoccur. Two pilots made the decision to continue flight safely. The checklist can not cover every situation. In this case idling a perfectly good engine would have made the situation more difficult to deal with.

Original NASA ASRS Text

Title: A LR35's right engine Fire Warning alerted during climb out. When thrust was reduced the warning ceased so the flight continued normally and later a weak heat sensing unit was found to have caused the warning.

Narrative: In the evening after takeoff with 2 nurses and one patient on board; in the climb; the right hand engine fire warning light came on. Confirmed it was right engine with SIC (Second in Command); I pulled back power on the engine as the memory items require. As the ITT on the right-hand engine got below 800 degrees; the fire light extinguished. It was not on for more than ten seconds from noticing it until it went out. The checklist suggests bringing the engine to idle and flying on the other engine and land as soon as practical. However all engine indications were normal. After conferring with the SIC we decided to continue to our destination if the fire light stayed out with the engine at 795 ITT. The light did not come on again for the rest of the flight. We continued without incident for the rest of the flight. We had two good engines; and one malfunctioning indication system which malfunctioned once and did not reoccur. Two pilots made the decision to continue flight safely. The checklist can not cover every situation. In this case idling a perfectly good engine would have made the situation more difficult to deal with.

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.

Attributes
ACN	922638
Time
Date	201012
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Make Model Name	Learjet 35
Operating Under FAR Part	Part 135
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	APU Fire/Overheat Warning
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

A LR35's right engine fire warning alerted during climb out. When thrust was reduced the warning ceased so the flight continued normally and later a weak heat sensing unit was found to have caused the warning.