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A B747-400 main landing gear door track was abrasive blasted, corrosion treated and installed on the door with no documentation of work.
| Attributes | |
| ACN | 516892 |
| Time | |
| Date | 200105 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B747-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 14 |
| ASRS Report | 516892 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | other other : person 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : non availability of parts contributing factor : manuals contributing factor : schedule pressure performance deficiency : repair |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication Environmental Factor |
| Primary Problem | Maintenance Human Performance |
Narrative:
While overhauling medium large transport door, discovered inner track missing. Did not come to shop with door. Ordered new track, and had to wait several weeks. Then I heard we got one, but receiving inspection did not accept it due to light corrosion. Then a couple of days later, my lead gave it to me to clean up and paint. I abrasive-blasted it and had it painted, and installed it on the door. Door went to stores and was sent to hangar for installation on aircraft. I assumed that when I got the part it had passed receiving inspection and was good to go. As far as not documenting painting and installation, I have no excuse. Installation is now documented on appropriate paperwork before aircraft left the hangar.
Original NASA ASRS Text
Title: A B747-400 MAIN LNDG GEAR DOOR TRACK WAS ABRASIVE BLASTED, CORROSION TREATED AND INSTALLED ON THE DOOR WITH NO DOCUMENTATION OF WORK.
Narrative: WHILE OVERHAULING MLG DOOR, DISCOVERED INNER TRACK MISSING. DID NOT COME TO SHOP WITH DOOR. ORDERED NEW TRACK, AND HAD TO WAIT SEVERAL WKS. THEN I HEARD WE GOT ONE, BUT RECEIVING INSPECTION DID NOT ACCEPT IT DUE TO LIGHT CORROSION. THEN A COUPLE OF DAYS LATER, MY LEAD GAVE IT TO ME TO CLEAN UP AND PAINT. I ABRASIVE-BLASTED IT AND HAD IT PAINTED, AND INSTALLED IT ON THE DOOR. DOOR WENT TO STORES AND WAS SENT TO HANGAR FOR INSTALLATION ON ACFT. I ASSUMED THAT WHEN I GOT THE PART IT HAD PASSED RECEIVING INSPECTION AND WAS GOOD TO GO. AS FAR AS NOT DOCUMENTING PAINTING AND INSTALLATION, I HAVE NO EXCUSE. INSTALLATION IS NOW DOCUMENTED ON APPROPRIATE PAPERWORK BEFORE ACFT LEFT THE HANGAR.
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.