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A B767 on check maintenance run experienced #7 wheel locked due to failure to install the wheel spacer on replacement of the #7 wheel and tire assembly.
| Attributes | |
| ACN | 465911 |
| Time | |
| Date | 200003 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 465911 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 465906 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated other other |
| Factors | |
| Maintenance | contributing factor : lighting contributing factor : schedule pressure performance deficiency : scheduled maintenance performance deficiency : repair performance deficiency : installation performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On the morning of mar/xa/00 after doing the entire portion of an 'a' check on aircraft xyz I found 3 main wheel assemblies with sidewall wear beyond limits. Another mechanic and I replaced all 3 tires. All 3 tires were changed per the maintenance manual -- torqued, spun freely after torquing with no side play. The aircraft later went out for a maintenance run where the #7 tire locked up due to the gear spacer being missing. I signed the confirmation for the changing of this wheel assembly.
Original NASA ASRS Text
Title: A B767 ON CHK MAINT RUN EXPERIENCED #7 WHEEL LOCKED DUE TO FAILURE TO INSTALL THE WHEEL SPACER ON REPLACEMENT OF THE #7 WHEEL AND TIRE ASSEMBLY.
Narrative: ON THE MORNING OF MAR/XA/00 AFTER DOING THE ENTIRE PORTION OF AN 'A' CHK ON ACFT XYZ I FOUND 3 MAIN WHEEL ASSEMBLIES WITH SIDEWALL WEAR BEYOND LIMITS. ANOTHER MECH AND I REPLACED ALL 3 TIRES. ALL 3 TIRES WERE CHANGED PER THE MAINT MANUAL -- TORQUED, SPUN FREELY AFTER TORQUING WITH NO SIDE PLAY. THE ACFT LATER WENT OUT FOR A MAINT RUN WHERE THE #7 TIRE LOCKED UP DUE TO THE GEAR SPACER BEING MISSING. I SIGNED THE CONFIRMATION FOR THE CHANGING OF THIS WHEEL ASSEMBLY.
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.