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DC10-30 freighter crew discovers en route that their aircraft is heavier than loading documents indicate by approximately 35000 pounds.
| Attributes | |
| ACN | 466990 |
| Time | |
| Date | 200003 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : anc.airport |
| State Reference | AK |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 30F |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 18000 flight time type : 100 |
| ASRS Report | 466990 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : flight engineer pilot : cfi pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 130 flight time total : 9500 flight time type : 1750 |
| ASRS Report | 467462 |
| Events | |
| Anomaly | non adherence : company policies non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa other flight crewa other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Supplementary | |
| Problem Areas | Company |
| Primary Problem | Company |
Narrative:
On takeoff, aircraft was nose heavy. Throughout flight, aircraft exhibited heavier than weight manifest performance. So calculated aircraft weight to be approximately 35000 pounds heavier than published weight manifest, based on aircraft performance. Total fuel burnout for the segment was 12900 pounds above planned burnout. Aircraft controllability was not a factor, estimated gross weight was below maximum structural/performance, approach speeds were predicated on projected higher weight, and except for high fuel burnoff, operation was normal (almost). Supplemental information from acn 467462: we estimated our ZFW to be approximately 35000 pounds more than our papers showed. Aircraft performance reflected this estimate according to power required to maintain mach .82 at flight planned altitude. Dispatch was able to reach us by radio after we were more than halfway to advise us of the situation and estimate our landing weight.
Original NASA ASRS Text
Title: DC10-30 FREIGHTER CREW DISCOVERS ENRTE THAT THEIR ACFT IS HEAVIER THAN LOADING DOCUMENTS INDICATE BY APPROX 35000 LBS.
Narrative: ON TKOF, ACFT WAS NOSE HVY. THROUGHOUT FLT, ACFT EXHIBITED HEAVIER THAN WT MANIFEST PERFORMANCE. SO CALCULATED ACFT WT TO BE APPROX 35000 LBS HEAVIER THAN PUBLISHED WT MANIFEST, BASED ON ACFT PERFORMANCE. TOTAL FUEL BURNOUT FOR THE SEGMENT WAS 12900 LBS ABOVE PLANNED BURNOUT. ACFT CONTROLLABILITY WAS NOT A FACTOR, ESTIMATED GROSS WT WAS BELOW MAX STRUCTURAL/PERFORMANCE, APCH SPDS WERE PREDICATED ON PROJECTED HIGHER WT, AND EXCEPT FOR HIGH FUEL BURNOFF, OP WAS NORMAL (ALMOST). SUPPLEMENTAL INFO FROM ACN 467462: WE ESTIMATED OUR ZFW TO BE APPROX 35000 LBS MORE THAN OUR PAPERS SHOWED. ACFT PERFORMANCE REFLECTED THIS ESTIMATE ACCORDING TO PWR REQUIRED TO MAINTAIN MACH .82 AT FLT PLANNED ALT. DISPATCH WAS ABLE TO REACH US BY RADIO AFTER WE WERE MORE THAN HALFWAY TO ADVISE US OF THE SIT AND ESTIMATE OUR LNDG WT.
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.