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B757-300 flight crew mistakenly departed with derated power after misreading their company provided performance information.
| Attributes | |
| ACN | 900428 |
| Time | |
| Date | 201007 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | SFO.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B757-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 100 Flight Crew Total 10000 Flight Crew Type 150 |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Deviation - Procedural Weight And Balance |
Narrative:
During the preflight checklist the captain was reading the ACARS to me (the first officer and pilot flying). He said flaps 5 for runway 28R. I corrected him and said we would use runway 1R. Captain confused the runway 28R and runway 1R data. Captain said runway 1R would be flaps 5 derate of 20 - should have been full power flaps 20. Takeoff was smooth and uneventful. The error was caught after takeoff. ACARS printout is easily misread. It is very compact and the letter 'D' could mean 'dry' or 'derate'. 20 could mean flaps 20 or derate 20. ACARS should be more clearly delineated.
Original NASA ASRS Text
Title: B757-300 flight crew mistakenly departed with derated power after misreading their company provided performance information.
Narrative: During the preflight checklist the Captain was reading the ACARS to me (the First Officer and pilot flying). He said flaps 5 for Runway 28R. I corrected him and said we would use Runway 1R. Captain confused the Runway 28R and Runway 1R data. Captain said Runway 1R would be flaps 5 derate of 20 - should have been full power flaps 20. Takeoff was smooth and uneventful. The error was caught after takeoff. ACARS printout is easily misread. It is very compact and the letter 'D' could mean 'Dry' or 'Derate'. 20 could mean flaps 20 or Derate 20. ACARS should be more clearly delineated.
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.