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A B727-200 was dispatched and operated in non compliance with an unapproved repair to a flap transmission input shaft, cover plate and seal.
| Attributes | |
| ACN | 446321 |
| Time | |
| Date | 199908 |
| Day | Sat |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : dfw.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 15 |
| ASRS Report | 446321 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance lead technician : 5 maintenance technician : 19 |
| ASRS Report | 446322 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals performance deficiency : installation performance deficiency : non compliance with legal requirements performance deficiency : repair |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance Company Chart Or Publication |
| Primary Problem | Chart Or Publication |
| Situations | |
| Publication | B727 Maintenance Manual |
Narrative:
On aug/xa/99 I replaced some parts on a wing flap screw jack transmission on a B727-200. I was assured by my lead mechanic and other mechanics that this was a standard procedure. The parts I replaced were taken from a svcable unit and installed to repair a leak. The parts are an input shaft, cover plate and seal. I have since been informed from my management that this is not a line replaceable unit. I was also told that this has occurred several times before and no one knew it was wrong until we were advised by the shop that repairs this component.
Original NASA ASRS Text
Title: A B727-200 WAS DISPATCHED AND OPERATED IN NON COMPLIANCE WITH AN UNAPPROVED REPAIR TO A FLAP TRANSMISSION INPUT SHAFT, COVER PLATE AND SEAL.
Narrative: ON AUG/XA/99 I REPLACED SOME PARTS ON A WING FLAP SCREW JACK TRANSMISSION ON A B727-200. I WAS ASSURED BY MY LEAD MECH AND OTHER MECHS THAT THIS WAS A STANDARD PROC. THE PARTS I REPLACED WERE TAKEN FROM A SVCABLE UNIT AND INSTALLED TO REPAIR A LEAK. THE PARTS ARE AN INPUT SHAFT, COVER PLATE AND SEAL. I HAVE SINCE BEEN INFORMED FROM MY MGMNT THAT THIS IS NOT A LINE REPLACEABLE UNIT. I WAS ALSO TOLD THAT THIS HAS OCCURRED SEVERAL TIMES BEFORE AND NO ONE KNEW IT WAS WRONG UNTIL WE WERE ADVISED BY THE SHOP THAT REPAIRS THIS COMPONENT.
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.