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A300 center of gravity ctrl system inoperative; however; fuel entered the trim tank through a closed valve. Unable to remove fuel from the tail tank for weight and balance; the crew landed.
| Attributes | |
| ACN | 748301 |
| Time | |
| Date | 200707 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Route In Use | enroute : other oceanic |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 748301 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : diverted to another airport |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Center of gravity control system (cgcc) placard inoperative; isolation (iso) valve turned off. Mode selector valve faulted. Iso valve on ECAM showed closed but trim tank was filling up with fuel through iso valve. Unable to get out of trim tank because mode selector valve faulted. With 3400 pounds in trim tank; diverted to mia before trim tank exceeded 4400 pounds for landing creating severe aft cg on landing.
Original NASA ASRS Text
Title: A300 CTR OF GRAVITY CTRL SYSTEM INOP; HOWEVER; FUEL ENTERED THE TRIM TANK THROUGH A CLOSED VALVE. UNABLE TO REMOVE FUEL FROM THE TAIL TANK FOR WT AND BALANCE; THE CREW LANDED.
Narrative: CENTER OF GRAVITY CTL SYSTEM (CGCC) PLACARD INOP; ISOLATION (ISO) VALVE TURNED OFF. MODE SELECTOR VALVE FAULTED. ISO VALVE ON ECAM SHOWED CLOSED BUT TRIM TANK WAS FILLING UP WITH FUEL THROUGH ISO VALVE. UNABLE TO GET OUT OF TRIM TANK BECAUSE MODE SELECTOR VALVE FAULTED. WITH 3400 LBS IN TRIM TANK; DIVERTED TO MIA BEFORE TRIM TANK EXCEEDED 4400 LBS FOR LNDG CREATING SEVERE AFT CG ON LNDG.
Data retrieved from NASA's ASRS site as of January 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.