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LR35 captain reports engine fire warning climbing to FL430. When thrust is reduced for descent the light goes out and flight continues to destination.
| Attributes | |
| ACN | 763490 |
| Time | |
| Date | 200711 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl bound lower : 41000 msl bound upper : 43000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | general aviation : corporate |
| Make Model Name | Learjet 35 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : vacating altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 75 flight time total : 7000 flight time type : 2000 |
| ASRS Report | 763490 |
| Events | |
| Anomaly | aircraft equipment problem : less severe |
| Independent Detector | aircraft equipment other aircraft equipment : fire warning other flight crewa |
| Resolutory Action | aircraft : equipment problem dissipated controller : issued new clearance flight crew : declared emergency |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
While climbing from FL410 to FL430; right fire warning light came on. I was the PNF. Immediately called ATC and told them we had a fire light and need descent. ATC asked if I wanted to declare an emergency. I told them yes. They (ATC) told us to descend to FL390. At the same time I (PNF) was talking to ATC; the PF started descending and reducing power on right engine. The fire light went out and we leveled off at FL390. This process of ATC and start of descent was only a few seconds. We troubleshot the system per checklist and experience. Could not find any reason for fire light to come on. All system were normal. Discussed this between PF and PNF and decided it was a false indication. Contacted ATC and canceled the emergency. No further issues.
Original NASA ASRS Text
Title: LR35 CAPT REPORTS ENG FIRE WARNING CLIMBING TO FL430. WHEN THRUST IS REDUCED FOR DESCENT THE LIGHT GOES OUT AND FLIGHT CONTINUES TO DESTINATION.
Narrative: WHILE CLBING FROM FL410 TO FL430; R FIRE WARNING LIGHT CAME ON. I WAS THE PNF. IMMEDIATELY CALLED ATC AND TOLD THEM WE HAD A FIRE LIGHT AND NEED DSCNT. ATC ASKED IF I WANTED TO DECLARE AN EMER. I TOLD THEM YES. THEY (ATC) TOLD US TO DSND TO FL390. AT THE SAME TIME I (PNF) WAS TALKING TO ATC; THE PF STARTED DSNDING AND REDUCING PWR ON R ENG. THE FIRE LIGHT WENT OUT AND WE LEVELED OFF AT FL390. THIS PROCESS OF ATC AND START OF DSCNT WAS ONLY A FEW SECONDS. WE TROUBLESHOT THE SYS PER CHKLIST AND EXPERIENCE. COULD NOT FIND ANY REASON FOR FIRE LIGHT TO COME ON. ALL SYS WERE NORMAL. DISCUSSED THIS BTWN PF AND PNF AND DECIDED IT WAS A FALSE INDICATION. CONTACTED ATC AND CANCELED THE EMER. NO FURTHER ISSUES.
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.