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Mechanic with aircraft engine modification company realized the modification weight and balance had an error and has sent the corrected weight and balance to those aircraft owners with the modification.
| Attributes | |
| ACN | 298180 |
| Time | |
| Date | 199503 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zv1 |
| State Reference | CO |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Beechcraft, Beech Aircraft Corp Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 298180 |
| Events | |
| Anomaly | non adherence : published procedure non adherence : far |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
We work in a modification shop. On a modification which we do frequently, it came to our attention that the weight and balance information used in the maintenance signoff may be incorrect. We are currently investigating the matter, and it will be corrected. It is probably not a significant error, but still needs to be corrected. Callback conversation with reporter revealed the following information: the reporter stated that the aircraft was a class of airplanes and not a specific one. In fact, there were over a hundred of the modifications done on bonanzas like A-36's and 33's. There has been no repercussions from the faulty weight and balance calculations and the corrections have been sent to those who have the modifications.
Original NASA ASRS Text
Title: MECH WITH ACFT ENG MODIFICATION COMPANY REALIZED THE MODIFICATION WT AND BAL HAD AN ERROR AND HAS SENT THE CORRECTED WT AND BAL TO THOSE ACFT OWNERS WITH THE MODIFICATION.
Narrative: WE WORK IN A MODIFICATION SHOP. ON A MODIFICATION WHICH WE DO FREQUENTLY, IT CAME TO OUR ATTN THAT THE WT AND BAL INFO USED IN THE MAINT SIGNOFF MAY BE INCORRECT. WE ARE CURRENTLY INVESTIGATING THE MATTER, AND IT WILL BE CORRECTED. IT IS PROBABLY NOT A SIGNIFICANT ERROR, BUT STILL NEEDS TO BE CORRECTED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THAT THE ACFT WAS A CLASS OF AIRPLANES AND NOT A SPECIFIC ONE. IN FACT, THERE WERE OVER A HUNDRED OF THE MODIFICATIONS DONE ON BONANZAS LIKE A-36'S AND 33'S. THERE HAS BEEN NO REPERCUSSIONS FROM THE FAULTY WT AND BAL CALCULATIONS AND THE CORRECTIONS HAVE BEEN SENT TO THOSE WHO HAVE THE MODIFICATIONS.
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.