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Dehavilland Q400 departs with maximum takeoff weight limited by enroute climb (metw) below proposed take off weight (ptow); a paperwork violation. Because anti-ice was not required enroute the pragmatic impact was nil.
| Attributes | |
| ACN | 812692 |
| Time | |
| Date | 200811 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : boi.airport |
| State Reference | ID |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Q400 (Formerly Dash 8-400) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel |
| ASRS Report | 812692 |
| Events | |
| Anomaly | non adherence : far non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft Company |
| Primary Problem | Company |
Narrative:
The flight departed with a listed maximum en route takeoff weight below proposed takeoff weight. This discrepancy occurred due to selection of automatic anti-ice performance and method 1 performance for the en route portion of the flight plan. I discovered this error well into the en route phase of flight and was unable to contact the aircraft en route (no SELCAL). The flight was; however; well past the highest terrain portion of flight; therefore; maximum en route takeoff weight was no longer a factor. Also; I contacted the pilot on the ground and informed him that I would report this error. He confirmed that anti-ice systems were not required nor used en route and it was also confirmed that the maximum en route takeoff weight was no factor in this flight.
Original NASA ASRS Text
Title: DEHAVILLAND Q400 DEPARTS WITH MAXIMUM TAKEOFF WEIGHT LIMITED BY ENROUTE CLIMB (METW) BELOW PROPOSED TAKE OFF WEIGHT (PTOW); A PAPERWORK VIOLATION. BECAUSE ANTI-ICE WAS NOT REQUIRED ENROUTE THE PRAGMATIC IMPACT WAS NIL.
Narrative: THE FLT DEPARTED WITH A LISTED MAX ENRTE TKOF WT BELOW PROPOSED TKOF WT. THIS DISCREPANCY OCCURRED DUE TO SELECTION OF AUTO ANTI-ICE PERFORMANCE AND METHOD 1 PERFORMANCE FOR THE ENRTE PORTION OF THE FLT PLAN. I DISCOVERED THIS ERROR WELL INTO THE ENRTE PHASE OF FLT AND WAS UNABLE TO CONTACT THE ACFT ENRTE (NO SELCAL). THE FLT WAS; HOWEVER; WELL PAST THE HIGHEST TERRAIN PORTION OF FLT; THEREFORE; MAX ENRTE TKOF WT WAS NO LONGER A FACTOR. ALSO; I CONTACTED THE PLT ON THE GND AND INFORMED HIM THAT I WOULD RPT THIS ERROR. HE CONFIRMED THAT ANTI-ICE SYSTEMS WERE NOT REQUIRED NOR USED ENRTE AND IT WAS ALSO CONFIRMED THAT THE MAX ENRTE TKOF WT WAS NO FACTOR IN THIS FLT.
Data retrieved from NASA's ASRS site as of May 2009 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.