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A B747 crew was told that the published takeoff minimums potentially restricting their departure were inaccurate and that lower minimum applied. The crew felt that they were given inaccurate information in order to keep the aircraft moving.
| Attributes | |
| ACN | 865021 |
| Time | |
| Date | 200912 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | Marginal |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B747-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Person 1 | |
| Function | First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 150 Flight Crew Total 12000 Flight Crew Type 2500 |
| Events | |
| Anomaly | Deviation - Procedural FAR Deviation - Procedural Published Material / Policy |
Narrative:
Prior to departure we checked the current conditions and it appeared the weather was below our takeoff minimums as published on our commercial type 2 charts. We consulted with dispatch and they thought we were legal and cited passages from our operation specifications. We could not find this information and when we called back; one of the chief pilots came to the phone and told the captain we were legal to go - basically that the charts were inaccurate and that a correction was in the works. On that information; we departed uneventfully. I don't think the chief pilot mentioned what the correct takeoff minimums were and since this incident; I'm not aware of any information posted that identifies this error in the charts so other crews won't have the same issue. I feel that the pressure to 'move the aircraft' may have been the primary reason for the vague; conflicting information provided by management.
Original NASA ASRS Text
Title: A B747 crew was told that the published takeoff minimums potentially restricting their departure were inaccurate and that lower minimum applied. The crew felt that they were given inaccurate information in order to keep the aircraft moving.
Narrative: Prior to departure we checked the current conditions and it appeared the weather was below our takeoff minimums as published on our Commercial Type 2 charts. We consulted with Dispatch and they thought we were legal and cited passages from our Operation Specifications. We could not find this information and when we called back; one of the chief pilots came to the phone and told the Captain we were legal to go - basically that the charts were inaccurate and that a correction was in the works. On that information; we departed uneventfully. I don't think the Chief Pilot mentioned what the correct takeoff minimums were and since this incident; I'm not aware of any information posted that identifies this error in the charts so other crews won't have the same issue. I feel that the pressure to 'move the aircraft' may have been the primary reason for the vague; conflicting information provided by management.
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.