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A B737-300 was discovered to have 1 left pylon panel missing. Left thrust reverser work accomplished previous day.
| Attributes | |
| ACN | 623981 |
| Time | |
| Date | 200407 |
| Day | Wed |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : czbb.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 623981 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 623982 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : inspection performance deficiency : installation performance deficiency : scheduled maintenance |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Maintenance supervisor informed us that aircraft XXX 'a' access panel had separated and flew off on landing in airport. We had been around the aircraft on jul/tue/04 the day before doing scheduled maintenance on a thrust reverser component. We finished the job and did a thorough inspection on all of the panels in that area, and all panels were well secured. My only guess is that the panel became loose on landing due to the vibration from air turbulence. I have had some reports that these panels have become separated from other aircraft from other airlines also. I can only suggest that a stronger bonding cable than the one already installed be replaced.
Original NASA ASRS Text
Title: A B737-300 WAS DISCOVERED TO HAVE 1 L PYLON PANEL MISSING. L THRUST REVERSER WORK ACCOMPLISHED PREVIOUS DAY.
Narrative: MAINT SUPVR INFORMED US THAT ACFT XXX 'A' ACCESS PANEL HAD SEPARATED AND FLEW OFF ON LNDG IN ARPT. WE HAD BEEN AROUND THE ACFT ON JUL/TUE/04 THE DAY BEFORE DOING SCHEDULED MAINT ON A THRUST REVERSER COMPONENT. WE FINISHED THE JOB AND DID A THOROUGH INSPECTION ON ALL OF THE PANELS IN THAT AREA, AND ALL PANELS WERE WELL SECURED. MY ONLY GUESS IS THAT THE PANEL BECAME LOOSE ON LNDG DUE TO THE VIBRATION FROM AIR TURB. I HAVE HAD SOME RPTS THAT THESE PANELS HAVE BECOME SEPARATED FROM OTHER ACFT FROM OTHER AIRLINES ALSO. I CAN ONLY SUGGEST THAT A STRONGER BONDING CABLE THAN THE ONE ALREADY INSTALLED BE REPLACED.
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.