 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An L1011 on initial climb at 4000 ft declared an emergency and diverted due to a master caution warning on #3 engine fire detector loop caused by an engine bleed valve leak.
| Attributes | |
| ACN | 474183 |
| Time | |
| Date | 200005 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : lax.airport |
| State Reference | CA |
| Altitude | msl single value : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | L-1011 Tri-Star All Series |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : initial |
| Route In Use | departure sid : lax 3 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : multi engine pilot : instrument |
| ASRS Report | 474183 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly |
| Independent Detector | aircraft equipment other aircraft equipment : #3 engine fire dt. loop other flight crewa other flight crewb other other : person 3 |
| Resolutory Action | flight crew : declared emergency flight crew : diverted to another airport |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Initial takeoff -- departure. Lax 3, takeoff runway 25R, gross weight 406000 pounds, fuel load approximately 65000 pounds. On initial leveloff at approximately 2000 ft MSL, the problem arose as a 'fire detection loop' caution lamp on the pilot's master caution panel. After complying with pom checklist, it was determined that a possible fire existed in the #3 engine. No visible signs of fire existed, but the checklist calls for shutting the engine down as a precaution. An in-flight emergency was declared with socal departure and we commenced dumping fuel to reduce our gross weight down to 368000 pounds in order to avoid an overweight landing. An engine-out, coupled approach (ILS runway 25L) was flown to a hand-flown landing. All events went without incident. After landing, maintenance discovered a bleed air leak in the #3 high pressure bleed valve.
Original NASA ASRS Text
Title: AN L1011 ON INITIAL CLB AT 4000 FT DECLARED AN EMER AND DIVERTED DUE TO A MASTER CAUTION WARNING ON #3 ENG FIRE DETECTOR LOOP CAUSED BY AN ENG BLEED VALVE LEAK.
Narrative: INITIAL TKOF -- DEP. LAX 3, TKOF RWY 25R, GROSS WT 406000 LBS, FUEL LOAD APPROX 65000 LBS. ON INITIAL LEVELOFF AT APPROX 2000 FT MSL, THE PROB AROSE AS A 'FIRE DETECTION LOOP' CAUTION LAMP ON THE PLT'S MASTER CAUTION PANEL. AFTER COMPLYING WITH POM CHKLIST, IT WAS DETERMINED THAT A POSSIBLE FIRE EXISTED IN THE #3 ENG. NO VISIBLE SIGNS OF FIRE EXISTED, BUT THE CHKLIST CALLS FOR SHUTTING THE ENG DOWN AS A PRECAUTION. AN INFLT EMER WAS DECLARED WITH SOCAL DEP AND WE COMMENCED DUMPING FUEL TO REDUCE OUR GROSS WT DOWN TO 368000 LBS IN ORDER TO AVOID AN OVERWT LNDG. AN ENG-OUT, COUPLED APCH (ILS RWY 25L) WAS FLOWN TO A HAND-FLOWN LNDG. ALL EVENTS WENT WITHOUT INCIDENT. AFTER LNDG, MAINT DISCOVERED A BLEED AIR LEAK IN THE #3 HIGH PRESSURE BLEED VALVE.
Data retrieved from NASA's ASRS site as of July 2007 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.