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A B737-500 #2 engine pylon strut panel #5828 departed aircraft on landing. Panel fasteners were omitted from engineering document to locktite.
| Attributes | |
| ACN | 755361 |
| Time | |
| Date | 200709 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 20 |
| ASRS Report | 755361 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : briefing contributing factor : engineering procedure contributing factor : manuals performance deficiency : installation |
| Supplementary | |
| Problem Areas | Chart Or Publication Maintenance Human Performance Aircraft |
| Primary Problem | Chart Or Publication |
Narrative:
On landing; this panel came off the aircraft. The fasteners on this panel are poorly designed; they can give a false sense of being tight when they are not. Engineering document was issued to address the problem of screws coming loose on the strut; however; panel 5828 was omitted from the requirement of locktite.
Original NASA ASRS Text
Title: A B737-500 #2 ENG PYLON STRUT PANEL #5828 DEPARTED ACFT ON LANDING. PANEL FASTENERS WERE OMITTED FROM ENGINEERING DOCUMENT TO LOCKTITE.
Narrative: ON LNDG; THIS PANEL CAME OFF THE ACFT. THE FASTENERS ON THIS PANEL ARE POORLY DESIGNED; THEY CAN GIVE A FALSE SENSE OF BEING TIGHT WHEN THEY ARE NOT. ENGINEERING DOCUMENT WAS ISSUED TO ADDRESS THE PROB OF SCREWS COMING LOOSE ON THE STRUT; HOWEVER; PANEL 5828 WAS OMITTED FROM THE REQUIREMENT OF LOCKTITE.
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.