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A B767-300 was dispatched in non compliance with the incorrect bolts installed in #2 engine aft mount.
| Attributes | |
| ACN | 460802 |
| Time | |
| Date | 200001 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | FO |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance lead technician : 27 maintenance technician : 5 |
| ASRS Report | 460802 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | oversight : supervisor |
| Qualification | technician : powerplant technician : airframe |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : fault isolation performance deficiency : logbook entry performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On the B767 PW4060 engine installation, the aft mount comes in 2 different configns -- rigid and flexible, whereby one installation has slightly longer bolts. On a transit inspection in frankfurt, I noticed that the shorter bolts had been installed in a confign that required the longer bolts. I inspected the mount bolts and the aft mount and found the installation to be secure. The engine had been replaced 3 weeks earlier. I released the aircraft for the return flight back to the main base. I called the maintenance coordination center on the phone to have the bolts replaced on arrival. The aircraft was taken OTS and the correct bolts installed.
Original NASA ASRS Text
Title: A B767-300 WAS DISPATCHED IN NON COMPLIANCE WITH THE INCORRECT BOLTS INSTALLED IN #2 ENG AFT MOUNT.
Narrative: ON THE B767 PW4060 ENG INSTALLATION, THE AFT MOUNT COMES IN 2 DIFFERENT CONFIGNS -- RIGID AND FLEXIBLE, WHEREBY ONE INSTALLATION HAS SLIGHTLY LONGER BOLTS. ON A TRANSIT INSPECTION IN FRANKFURT, I NOTICED THAT THE SHORTER BOLTS HAD BEEN INSTALLED IN A CONFIGN THAT REQUIRED THE LONGER BOLTS. I INSPECTED THE MOUNT BOLTS AND THE AFT MOUNT AND FOUND THE INSTALLATION TO BE SECURE. THE ENG HAD BEEN REPLACED 3 WKS EARLIER. I RELEASED THE ACFT FOR THE RETURN FLT BACK TO THE MAIN BASE. I CALLED THE MAINT COORD CTR ON THE PHONE TO HAVE THE BOLTS REPLACED ON ARR. THE ACFT WAS TAKEN OTS AND THE CORRECT BOLTS INSTALLED.
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.