 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Due to a stocking error (RB211-535e4) engine forward mount bolts were installed with the incorrect bolts.
| Attributes | |
| ACN | 519448 |
| Time | |
| Date | 200107 |
| 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 : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 519448 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 519445 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : person 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Company |
| Primary Problem | Maintenance Human Performance |
Narrative:
Due to a possible error in hardware stocking, there may exist a condition in which incorrect bolts, supplied with the mount installation kit, were installed on any number of engines. Callback conversation with reporter revealed the following information: the reporter stated the bolts were exactly the same as the normal bolts in length, size and grip and only 1 number off. Engineering alerted rolls royce and an engineering variance authority/authorized was issued by rolls royce to continue in service and replace the bolts at next engine shop visit.
Original NASA ASRS Text
Title: DUE TO A STOCKING ERROR (RB211-535E4) ENG FORWARD MOUNT BOLTS WERE INSTALLED WITH THE INCORRECT BOLTS.
Narrative: DUE TO A POSSIBLE ERROR IN HARDWARE STOCKING, THERE MAY EXIST A CONDITION IN WHICH INCORRECT BOLTS, SUPPLIED WITH THE MOUNT INSTALLATION KIT, WERE INSTALLED ON ANY NUMBER OF ENGS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE BOLTS WERE EXACTLY THE SAME AS THE NORMAL BOLTS IN LENGTH, SIZE AND GRIP AND ONLY 1 NUMBER OFF. ENGINEERING ALERTED ROLLS ROYCE AND AN ENGINEERING VARIANCE AUTH WAS ISSUED BY ROLLS ROYCE TO CONTINUE IN SVC AND REPLACE THE BOLTS AT NEXT ENG SHOP VISIT.
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.