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A B737-400 captain reports on taxi out with APU pwring the airplane, the APU was shut down. The lights went out until the generator busses could be switched on.
| Attributes | |
| ACN | 594575 |
| Time | |
| Date | 200309 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 594575 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : company policies non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : gen bus off lights other flight crewa other flight crewb |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Flight Crew Human Performance |
Narrative:
A split second after turning off the APU on taxi out, the electrical system dropped off as I didn't have the busses pwred with ship's generators. We'd done the after start checklist and I reached up to place the generators on, but somehow was distraction and didn't get them on the busses. The emergency lights came on for a split second until I'd switched to ship's power from the dying APU.
Original NASA ASRS Text
Title: A B737-400 CAPT RPTS ON TAXI OUT WITH APU PWRING THE AIRPLANE, THE APU WAS SHUT DOWN. THE LIGHTS WENT OUT UNTIL THE GENERATOR BUSSES COULD BE SWITCHED ON.
Narrative: A SPLIT SECOND AFTER TURNING OFF THE APU ON TAXI OUT, THE ELECTRICAL SYS DROPPED OFF AS I DIDN'T HAVE THE BUSSES PWRED WITH SHIP'S GENERATORS. WE'D DONE THE AFTER START CHKLIST AND I REACHED UP TO PLACE THE GENERATORS ON, BUT SOMEHOW WAS DISTR AND DIDN'T GET THEM ON THE BUSSES. THE EMER LIGHTS CAME ON FOR A SPLIT SECOND UNTIL I'D SWITCHED TO SHIP'S PWR FROM THE DYING APU.
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.