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A DC9-10 on landing rollout aircraft lost inboard tire and wheel assembly from the right main gear caused by improper installation.
| Attributes | |
| ACN | 452975 |
| Time | |
| Date | 199910 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : msp.airport |
| State Reference | MN |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : msp.tower |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 10 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | landing : roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 180 flight time total : 22000 flight time type : 8000 |
| ASRS Report | 452975 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : multi engine pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure contributing factor : engineering procedure performance deficiency : training performance deficiency : installation performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Company Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On touchdown, ATC tower advised us that one of our main landing gear wheels had come off our aircraft (right main gear, left inboard tire and rim). Callback conversation with reporter revealed the following information: the reporter stated maintenance advised that 2 axle nuts exist for these axles and the wrong one was installed when the wheel and tire assembly was replaced. The reporter said the difference is most likely the aircraft with the greater gross weight will use a heavier axle.
Original NASA ASRS Text
Title: A DC9-10 ON LNDG ROLLOUT ACFT LOST INBOARD TIRE AND WHEEL ASSEMBLY FROM THE R MAIN GEAR CAUSED BY IMPROPER INSTALLATION.
Narrative: ON TOUCHDOWN, ATC TWR ADVISED US THAT ONE OF OUR MAIN LNDG GEAR WHEELS HAD COME OFF OUR ACFT (R MAIN GEAR, L INBOARD TIRE AND RIM). CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED MAINT ADVISED THAT 2 AXLE NUTS EXIST FOR THESE AXLES AND THE WRONG ONE WAS INSTALLED WHEN THE WHEEL AND TIRE ASSEMBLY WAS REPLACED. THE RPTR SAID THE DIFFERENCE IS MOST LIKELY THE ACFT WITH THE GREATER GROSS WT WILL USE A HEAVIER AXLE.
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.