 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B737 flight crew and dispatch communications error allowed the numbers for a B737NG weight calculation instead of for a B737-300. The higher weight was over the aircraft's maximum takeoff allowable weight.
| Attributes | |
| ACN | 841167 |
| Time | |
| Date | 200906 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Experience | Flight Crew Last 90 Days 232 |
| Person 2 | |
| Function | First Officer |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Deviation - Procedural Weight And Balance |
Narrative:
Dispatch release was 3000 pounds more than performance paperwork weight. When I called dispatch about it; he said the system still showed same (higher) weight and asked if we had aircraft # plugged in. We doubled checked and we did. He then tried his performance program and it gave him the same numbers as we had. He said it must be a 'glitch' in his performance system. We (with operations agent) decided to offload 2200 pounds of freight to meet our takeoff weight and left 30 minutes late. Enroute dispatch sent message saying anomaly was solved. We had input B737NG instead of for a non-B737NG aircraft. I always check the release aircraft # with aircraft # nameplate in the cockpit; logbook identification#; and the aircraft # on the performance paperwork; and since they all matched; I thought we were good to go with the lesser weight.
Original NASA ASRS Text
Title: A B737 flight crew and dispatch communications error allowed the numbers for a B737NG weight calculation instead of for a B737-300. The higher weight was over the aircraft's maximum takeoff allowable weight.
Narrative: Dispatch Release was 3000 LBS more than performance paperwork weight. When I called Dispatch about it; he said the system still showed same (higher) weight and asked if we had aircraft # plugged in. We doubled checked and we did. He then tried his Performance program and it gave him the same numbers as we had. He said it must be a 'glitch' in his Performance system. We (with Operations Agent) decided to offload 2200 pounds of freight to meet our takeoff weight and left 30 minutes late. Enroute Dispatch sent message saying anomaly was solved. We had input B737NG instead of for a non-B737NG aircraft. I always check the release aircraft # with aircraft # nameplate in the cockpit; logbook ID#; and the aircraft # on the performance paperwork; and since they ALL matched; I thought we were good to go with the lesser weight.
Data retrieved from NASA's ASRS site as of April 2012 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.