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A B757 was dispatched with a fastener missing from the right pylon aft section using the incorrect structural repair document reference for deferral.
| Attributes | |
| ACN | 679206 |
| Time | |
| Date | 200511 |
| 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 | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| ASRS Report | 679206 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 679203 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Environmental Factor Maintenance Human Performance Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
On walkaround I found a rivet missing on the pylon aft of the right engine. Maintenance came out and deferred the item via repair document srm 51-40-00-2 'repair document for missing fasteners.' we were given a copy of this document and checked the logbook for a signoff and we departed. At cruise we read the whole repair doc and noticed that under paragraph 2B it said 'fastener must not be larger than 3/16 inch diameter and must not be a permanent fastener (eg; a hi-lok or rivet).' this appears to be the wrong deferral for this item.
Original NASA ASRS Text
Title: A B757 WAS DISPATCHED WITH A FASTENER MISSING FROM THE R PYLON AFT SECTION USING THE INCORRECT STRUCTURAL REPAIR DOCUMENT REFERENCE FOR DEFERRAL.
Narrative: ON WALKAROUND I FOUND A RIVET MISSING ON THE PYLON AFT OF THE R ENG. MAINT CAME OUT AND DEFERRED THE ITEM VIA REPAIR DOCUMENT SRM 51-40-00-2 'REPAIR DOCUMENT FOR MISSING FASTENERS.' WE WERE GIVEN A COPY OF THIS DOCUMENT AND CHKED THE LOGBOOK FOR A SIGNOFF AND WE DEPARTED. AT CRUISE WE READ THE WHOLE REPAIR DOC AND NOTICED THAT UNDER PARAGRAPH 2B IT SAID 'FASTENER MUST NOT BE LARGER THAN 3/16 INCH DIAMETER AND MUST NOT BE A PERMANENT FASTENER (EG; A HI-LOK OR RIVET).' THIS APPEARS TO BE THE WRONG DEFERRAL FOR THIS ITEM.
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.