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A B737-700 was dispatched in non compliance with unmatched nose gear tires. One a bias ply the other a radial both same part number.
| Attributes | |
| ACN | 531335 |
| Time | |
| Date | 200111 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 5 |
| ASRS Report | 531335 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Experience | maintenance technician : 2 |
| ASRS Report | 531334 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : manuals contributing factor : engineering procedure contributing factor : briefing contributing factor : work cards performance deficiency : installation performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Company Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On nov/wed/01, aircraft needed nose tires. We changed the nose tires and without knowing it, one was bias ply and one was a radial tire. To the best of our knowledge, there was no 2 inch DOT on the radial tire and the part numbers were the same on both parts tag.
Original NASA ASRS Text
Title: A B737-700 WAS DISPATCHED IN NON COMPLIANCE WITH UNMATCHED NOSE GEAR TIRES. ONE A BIAS PLY THE OTHER A RADIAL BOTH SAME PART NUMBER.
Narrative: ON NOV/WED/01, ACFT NEEDED NOSE TIRES. WE CHANGED THE NOSE TIRES AND WITHOUT KNOWING IT, ONE WAS BIAS PLY AND ONE WAS A RADIAL TIRE. TO THE BEST OF OUR KNOWLEDGE, THERE WAS NO 2 INCH DOT ON THE RADIAL TIRE AND THE PART NUMBERS WERE THE SAME ON BOTH PARTS TAG.
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.