 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B737-300 flight crew during pushback/taxi has multiple malfunctions; receives a takeoff warning; resets flaps and continues the flight.
| Attributes | |
| ACN | 698702 |
| Time | |
| Date | 200605 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : lax.airport |
| State Reference | CA |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi ground : takeoff roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 150 flight time total : 25000 flight time type : 20000 |
| ASRS Report | 698702 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 120 flight time total : 2700 flight time type : 255 |
| ASRS Report | 698703 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure other anomaly |
| Independent Detector | aircraft equipment other aircraft equipment : tkof warning other flight crewa other flight crewb |
| Resolutory Action | flight crew : overcame equipment problem |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Arrived at the aircraft; started my captain preflight checks. I found the #1 main fuel gauges inoperative. Maintenance was called. We pulled off the gate on time. After engine start; the #1 engine gen would not come on line. A terrain system fail light came on. I got the #1 gen on line. We ran a system test. The test showed a GPS internal failure. We attempted an IRS quick align. The fail light stayed on. I contacted maintenance. I told them about the system fail light. They asked if I was coming back to the gate. The first officer told me the light was out. I said yes. One of our company aircraft came on the air and asked me when I was moving. He was blocking me from going to the gate. The first officer told me the light was out. I told him ok; let's go. Ground control told us to go to the pad. We were still taxiing when tower cleared us for takeoff. I called for the before takeoff checklist; taxied on the runway; started setting takeoff power; then the takeoff warning horn came on. I looked at the flaps and they were up. We cleared the runway; set the flaps; checked the systems; looked at the fom; and wrote an information only in the logbook. We then departed las. I felt terrible that I missed the flaps and did not call for the before taxi checklist. I felt bad for my first officer because he does a great job. At cruise; we talked about what happened. We both felt like we were consumed by the fail light. I had it in my mind we were going back to the gate. We decided we should have started the checklists over; not rushed; controlled our mission. Supplemental information from acn 698703: at cruise; we discussed what led to the takeoff warning horn. A generator not coming on line; with the power cycling and terrain fail indication; took our attention away from our current flows and normal habit patterns. Multiple attempts to troubleshoot and attempting to taxi back to the gate further removed us from normal habit patterns.
Original NASA ASRS Text
Title: B737-300 FLT CREW DURING PUSHBACK/TAXI HAS MULTIPLE MALFUNCTIONS; RECEIVES A TKOF WARNING; RESETS FLAPS AND CONTINUES THE FLT.
Narrative: ARRIVED AT THE ACFT; STARTED MY CAPT PREFLT CHECKS. I FOUND THE #1 MAIN FUEL GAUGES INOP. MAINT WAS CALLED. WE PULLED OFF THE GATE ON TIME. AFTER ENG START; THE #1 ENG GEN WOULD NOT COME ON LINE. A TERRAIN SYS FAIL LIGHT CAME ON. I GOT THE #1 GEN ON LINE. WE RAN A SYS TEST. THE TEST SHOWED A GPS INTERNAL FAILURE. WE ATTEMPTED AN IRS QUICK ALIGN. THE FAIL LIGHT STAYED ON. I CONTACTED MAINT. I TOLD THEM ABOUT THE SYS FAIL LIGHT. THEY ASKED IF I WAS COMING BACK TO THE GATE. THE FO TOLD ME THE LIGHT WAS OUT. I SAID YES. ONE OF OUR COMPANY ACFT CAME ON THE AIR AND ASKED ME WHEN I WAS MOVING. HE WAS BLOCKING ME FROM GOING TO THE GATE. THE FO TOLD ME THE LIGHT WAS OUT. I TOLD HIM OK; LET'S GO. GND CTL TOLD US TO GO TO THE PAD. WE WERE STILL TAXIING WHEN TWR CLRED US FOR TKOF. I CALLED FOR THE BEFORE TKOF CHECKLIST; TAXIED ON THE RWY; STARTED SETTING TKOF POWER; THEN THE TKOF WARNING HORN CAME ON. I LOOKED AT THE FLAPS AND THEY WERE UP. WE CLEARED THE RWY; SET THE FLAPS; CHECKED THE SYSTEMS; LOOKED AT THE FOM; AND WROTE AN INFO ONLY IN THE LOGBOOK. WE THEN DEPARTED LAS. I FELT TERRIBLE THAT I MISSED THE FLAPS AND DID NOT CALL FOR THE BEFORE TAXI CHECKLIST. I FELT BAD FOR MY FO BECAUSE HE DOES A GREAT JOB. AT CRUISE; WE TALKED ABOUT WHAT HAPPENED. WE BOTH FELT LIKE WE WERE CONSUMED BY THE FAIL LIGHT. I HAD IT IN MY MIND WE WERE GOING BACK TO THE GATE. WE DECIDED WE SHOULD HAVE STARTED THE CHECKLISTS OVER; NOT RUSHED; CONTROLLED OUR MISSION. SUPPLEMENTAL INFO FROM ACN 698703: AT CRUISE; WE DISCUSSED WHAT LED TO THE TKOF WARNING HORN. A GENERATOR NOT COMING ON LINE; WITH THE POWER CYCLING AND TERRAIN FAIL INDICATION; TOOK OUR ATTENTION AWAY FROM OUR CURRENT FLOWS AND NORMAL HABIT PATTERNS. MULTIPLE ATTEMPTS TO TROUBLESHOOT AND ATTEMPTING TO TAXI BACK TO THE GATE FURTHER REMOVED US FROM NORMAL HABIT PATTERNS.
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.