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A DC9-30 #1 main tire blew out on landing. Aircraft had made 5 lndgs since tire and wheel installation. Found all tire through bolts loose.
| Attributes | |
| ACN | 656667 |
| Time | |
| Date | 200505 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 18 |
| ASRS Report | 656667 |
| Person 2 | |
| Affiliation | other |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : company policies non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : repair performance deficiency : non compliance with legal requirements performance deficiency : installation performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Aircraft Environmental Factor FAA Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
On mon; may 2005; aircraft X; a dc-9; arrived in ZZZ1. The #1 tire assembly blew on touchdown. Upon inspection; found tire assembly was assembled in ZZZ1 by manufacturer X; was placed on aircraft in ZZZ2; flew to ZZZ1; ZZZ1 to ZZZ3; ZZZ3 to ZZZ1; blew tire. Through bolts were all loose; could move them by hand. Bearings were shattered. Lower strut was out of limits and had to be changed. Aircraft was out of service for 2 days. Callback conversation with reporter revealed the following information: the tire shop was closed last year and the work contracted out to a company located in ZZZ. The reporter claims that the work received from this shop is sub standard. Issues include tie bolts not torqued; tie bolt nuts not showing at least three threads and tie bolts breaking after a short time in service. The flight safety district office has been alerted to the problem; but there apparently has not been much improvement.
Original NASA ASRS Text
Title: A DC9-30 #1 MAIN TIRE BLEW OUT ON LNDG. ACFT HAD MADE 5 LNDGS SINCE TIRE AND WHEEL INSTALLATION. FOUND ALL TIRE THROUGH BOLTS LOOSE.
Narrative: ON MON; MAY 2005; ACFT X; A DC-9; ARRIVED IN ZZZ1. THE #1 TIRE ASSEMBLY BLEW ON TOUCHDOWN. UPON INSPECTION; FOUND TIRE ASSEMBLY WAS ASSEMBLED IN ZZZ1 BY MANUFACTURER X; WAS PLACED ON ACFT IN ZZZ2; FLEW TO ZZZ1; ZZZ1 TO ZZZ3; ZZZ3 TO ZZZ1; BLEW TIRE. THROUGH BOLTS WERE ALL LOOSE; COULD MOVE THEM BY HAND. BEARINGS WERE SHATTERED. LOWER STRUT WAS OUT OF LIMITS AND HAD TO BE CHANGED. ACFT WAS OUT OF SERVICE FOR 2 DAYS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE TIRE SHOP WAS CLOSED LAST YEAR AND THE WORK CONTRACTED OUT TO A COMPANY LOCATED IN ZZZ. THE RPTR CLAIMS THAT THE WORK RECEIVED FROM THIS SHOP IS SUB STANDARD. ISSUES INCLUDE TIE BOLTS NOT TORQUED; TIE BOLT NUTS NOT SHOWING AT LEAST THREE THREADS AND TIE BOLTS BREAKING AFTER A SHORT TIME IN SERVICE. THE FLT SAFETY DISTRICT OFFICE HAS BEEN ALERTED TO THE PROB; BUT THERE APPARENTLY HAS NOT BEEN MUCH IMPROVEMENT.
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.