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Maintenance noticed missing fasteners on the rh outboard main T/east flap at the forward sling attach points. Fasteners were deferred under an srm chapter that later was determined to be incorrect and screws were not deferral.
| Attributes | |
| ACN | 785416 |
| Time | |
| Date | 200805 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| ASRS Report | 785416 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 785417 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : non compliance with mel maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : briefing contributing factor : manuals performance deficiency : installation performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
This report is being generated to provide clarity for log page. Aircraft was in maintenance for an 'a' check. I received a call from maintenance requesting a deferred item project for 2 each screws missing in the 4-HAND outboard main flap. Screws are used to fill holes for attaching sling for removal of flap. I was given srm reference. I issued deferred item project with srm missing fastener section. After aircraft departed; I received a call from quality control stating the srm reference could not be used for fasteners missing in trailing edge flaps reference srm. Notified maintenance; first flight of the day; that aircraft was grounded until screws were installed in r-hand outboard main flap. Maintenance installed screws and closed log page and no delay was incurred. I am confident that this was just an oversight. Advised maintenance of mistake made and will ensure that in the future deferrals will not be issued without reviewing the general instructions. Aircraft was corrected at first flight. Supplemental information from acn 785417: the srm reference states the type of structures that are permitted to have missing fasteners. Paragraph 1B gives the items that are not applicable. If the srm listed the non applicable items first; this situation would most likely not have occurred.
Original NASA ASRS Text
Title: MAINT NOTICED MISSING FASTENERS ON THE RH OUTBOARD MAIN T/E FLAP AT THE FORWARD SLING ATTACH POINTS. FASTENERS WERE DEFERRED UNDER AN SRM CHAPTER THAT LATER WAS DETERMINED TO BE INCORRECT AND SCREWS WERE NOT DEFERRAL.
Narrative: THIS RPT IS BEING GENERATED TO PROVIDE CLARITY FOR LOG PAGE. ACFT WAS IN MAINT FOR AN 'A' CHK. I RECEIVED A CALL FROM MAINT REQUESTING A DEFERRED ITEM PROJECT FOR 2 EACH SCREWS MISSING IN THE 4-HAND OUTBOARD MAIN FLAP. SCREWS ARE USED TO FILL HOLES FOR ATTACHING SLING FOR REMOVAL OF FLAP. I WAS GIVEN SRM REF. I ISSUED DEFERRED ITEM PROJECT WITH SRM MISSING FASTENER SECTION. AFTER ACFT DEPARTED; I RECEIVED A CALL FROM QUALITY CTL STATING THE SRM REF COULD NOT BE USED FOR FASTENERS MISSING IN TRAILING EDGE FLAPS REF SRM. NOTIFIED MAINT; FIRST FLT OF THE DAY; THAT ACFT WAS GROUNDED UNTIL SCREWS WERE INSTALLED IN R-HAND OUTBOARD MAIN FLAP. MAINT INSTALLED SCREWS AND CLOSED LOG PAGE AND NO DELAY WAS INCURRED. I AM CONFIDENT THAT THIS WAS JUST AN OVERSIGHT. ADVISED MAINT OF MISTAKE MADE AND WILL ENSURE THAT IN THE FUTURE DEFERRALS WILL NOT BE ISSUED WITHOUT REVIEWING THE GENERAL INSTRUCTIONS. ACFT WAS CORRECTED AT FIRST FLT. SUPPLEMENTAL INFO FROM ACN 785417: THE SRM REF STATES THE TYPE OF STRUCTURES THAT ARE PERMITTED TO HAVE MISSING FASTENERS. PARAGRAPH 1B GIVES THE ITEMS THAT ARE NOT APPLICABLE. IF THE SRM LISTED THE NON APPLICABLE ITEMS FIRST; THIS SITUATION WOULD MOST LIKELY NOT HAVE OCCURRED.
Data retrieved from NASA's ASRS site as of May 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.