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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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With the r-hand bleed valve malfunctioning and the left wing body overheat light on, the PIC of a B737-300 decides it is time to return and land during a night operation in an unpressurized aircraft after departure from oma, northeast.
| Attributes | |
| ACN | 591795 |
| Time | |
| Date | 200308 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : oma.airport |
| State Reference | NE |
| Altitude | agl bound lower : 500 agl bound upper : 11000 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : oma.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 591795 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| ASRS Report | 591798 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : bleed valve/overheat lites other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance controller : provided flight assist flight crew : diverted to another airport flight crew : declared emergency flight crew : landed in emergency condition |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Shortly after liftoff, right bleed trip-off light illuminated. Reset button pushed and light extinguished. Continued departure. Light reilluminated and reset again following procedures. Passing 9000 ft, left wing body overheat light illuminated. Light extinguished after irregular procedure accomplished. With left pack and bleed system inoperative and isolated, the right bleed trip-off light reilluminated. Climb was stopped at 11000 ft. Descended to 9000 ft. We talked the problem over, declared an emergency, and returned unpressurized to oma.
Original NASA ASRS Text
Title: WITH THE R-HAND BLEED VALVE MALFUNCTIONING AND THE L WING BODY OVERHEAT LIGHT ON, THE PIC OF A B737-300 DECIDES IT IS TIME TO RETURN AND LAND DURING A NIGHT OP IN AN UNPRESSURIZED ACFT AFTER DEP FROM OMA, NE.
Narrative: SHORTLY AFTER LIFTOFF, R BLEED TRIP-OFF LIGHT ILLUMINATED. RESET BUTTON PUSHED AND LIGHT EXTINGUISHED. CONTINUED DEP. LIGHT REILLUMINATED AND RESET AGAIN FOLLOWING PROCS. PASSING 9000 FT, L WING BODY OVERHEAT LIGHT ILLUMINATED. LIGHT EXTINGUISHED AFTER IRREGULAR PROC ACCOMPLISHED. WITH L PACK AND BLEED SYS INOP AND ISOLATED, THE R BLEED TRIP-OFF LIGHT REILLUMINATED. CLB WAS STOPPED AT 11000 FT. DSNDED TO 9000 FT. WE TALKED THE PROB OVER, DECLARED AN EMER, AND RETURNED UNPRESSURIZED TO OMA.
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.