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Flight crew of B757 reports load planning computer outage at a major airline hub resulted in incorrect final takeoff numbers. As a result the crew utilized takeoff data for tow weight 10000 pounds below the actual aircraft weight. Reporter advises this situation with the computers has existed for over a month.
| Attributes | |
| ACN | 589240 |
| Time | |
| Date | 200308 |
| Day | Fri |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 589240 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| ASRS Report | 589238 |
| Events | |
| Anomaly | non adherence : published procedure non adherence : company policies non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Company |
| Primary Problem | Company |
Narrative:
At this airport all the computers were down with one exception. This computer was somewhere in the basement of the gate area. After taxi out we had to wait for the closeout numbers due to the computer problems. Our first closeout failed to show the FAA inspector who was in the jumpseat and a loss of 62 passenger with a weight reduction of 10000 pounds off the plan. We called operations for a new closeout and got a verbal revision to the closeout with the jumpseat passenger included and still showing a passenger count of 112, 10000 pounds below plan. We adjusted the v-spds for the new weight. Then an unloaded copy was received on ACARS loaded into the FMC rechked and confirmed with the verbal closeout. 40 mins after takeoff another revision to the closeout was received showing 10000 pounds more weight on board and the passenger count was now 161. These computers have been inoperative for more than a month. This is a very serious problem that needs to be fixed.
Original NASA ASRS Text
Title: FLT CREW OF B757 RPTS LOAD PLANNING COMPUTER OUTAGE AT A MAJOR AIRLINE HUB RESULTED IN INCORRECT FINAL TKOF NUMBERS. AS A RESULT THE CREW UTILIZED TKOF DATA FOR TOW WT 10000 LBS BELOW THE ACTUAL ACFT WT. RPTR ADVISES THIS SIT WITH THE COMPUTERS HAS EXISTED FOR OVER A MONTH.
Narrative: AT THIS ARPT ALL THE COMPUTERS WERE DOWN WITH ONE EXCEPTION. THIS COMPUTER WAS SOMEWHERE IN THE BASEMENT OF THE GATE AREA. AFTER TAXI OUT WE HAD TO WAIT FOR THE CLOSEOUT NUMBERS DUE TO THE COMPUTER PROBS. OUR FIRST CLOSEOUT FAILED TO SHOW THE FAA INSPECTOR WHO WAS IN THE JUMPSEAT AND A LOSS OF 62 PAX WITH A WT REDUCTION OF 10000 LBS OFF THE PLAN. WE CALLED OPS FOR A NEW CLOSEOUT AND GOT A VERBAL REVISION TO THE CLOSEOUT WITH THE JUMPSEAT PAX INCLUDED AND STILL SHOWING A PAX COUNT OF 112, 10000 LBS BELOW PLAN. WE ADJUSTED THE V-SPDS FOR THE NEW WT. THEN AN UNLOADED COPY WAS RECEIVED ON ACARS LOADED INTO THE FMC RECHKED AND CONFIRMED WITH THE VERBAL CLOSEOUT. 40 MINS AFTER TKOF ANOTHER REVISION TO THE CLOSEOUT WAS RECEIVED SHOWING 10000 LBS MORE WT ON BOARD AND THE PAX COUNT WAS NOW 161. THESE COMPUTERS HAVE BEEN INOP FOR MORE THAN A MONTH. THIS IS A VERY SERIOUS PROB THAT NEEDS TO BE FIXED.
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.