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A B737-700 was dispatched with the incorrect nose tires installed. Airplane was operated 3 weeks before discovery and replacement of correct tires.
| Attributes | |
| ACN | 671884 |
| Time | |
| Date | 200508 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 671884 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | other other : 3 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : work cards contributing factor : schedule pressure performance deficiency : logbook entry performance deficiency : non compliance with legal requirements performance deficiency : inspection performance deficiency : installation |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Environmental Factor Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
I was informed tonight on sep/wed/05 at XA30 by my supervisor that I had installed the incorrect nose tires on aircraft back on aug/fri/05. He told me that on sep/mon/05 while another shift was doing a hot tire pressure check; they noted the improper nose tires; and installed the correct tires without delay or incident. On aug/fri/05; aircraft X was the 3RD of 4 aircraft that my partner and I were responsible for. I was the brake rider. Upon reaching the park; I performed the walkaround and found the nose tires with cord coming through. Once caught up with me; we were fairly busy at that time. I informed him that we needed nose tires. He returned with everything on his golf cart to change the tires. I went into changing the tires without a thought. This is a routine item -- I never asked or looked closely at the tugs.
Original NASA ASRS Text
Title: A B737-700 WAS DISPATCHED WITH THE INCORRECT NOSE TIRES INSTALLED. AIRPLANE WAS OPERATED 3 WEEKS BEFORE DISCOVERY AND REPLACEMENT OF CORRECT TIRES.
Narrative: I WAS INFORMED TONIGHT ON SEP/WED/05 AT XA30 BY MY SUPVR THAT I HAD INSTALLED THE INCORRECT NOSE TIRES ON ACFT BACK ON AUG/FRI/05. HE TOLD ME THAT ON SEP/MON/05 WHILE ANOTHER SHIFT WAS DOING A HOT TIRE PRESSURE CHK; THEY NOTED THE IMPROPER NOSE TIRES; AND INSTALLED THE CORRECT TIRES WITHOUT DELAY OR INCIDENT. ON AUG/FRI/05; ACFT X WAS THE 3RD OF 4 ACFT THAT MY PARTNER AND I WERE RESPONSIBLE FOR. I WAS THE BRAKE RIDER. UPON REACHING THE PARK; I PERFORMED THE WALKAROUND AND FOUND THE NOSE TIRES WITH CORD COMING THROUGH. ONCE CAUGHT UP WITH ME; WE WERE FAIRLY BUSY AT THAT TIME. I INFORMED HIM THAT WE NEEDED NOSE TIRES. HE RETURNED WITH EVERYTHING ON HIS GOLF CART TO CHANGE THE TIRES. I WENT INTO CHANGING THE TIRES WITHOUT A THOUGHT. THIS IS A ROUTINE ITEM -- I NEVER ASKED OR LOOKED CLOSELY AT THE TUGS.
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.