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A B727-200 during replacement of the left main gear trunnion bearing assembly the new fitting was drilled incorrectly. New part was scrapped.
| Attributes | |
| ACN | 427386 |
| Time | |
| Date | 199902 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Flight Phase | ground : parked other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 427386 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : published procedure |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
B727 main landing gear trunnion, duplicate holes from old part to new part. In process digital readout was misread from 1 mach to the other, 9/16 hole was mislocated, new trunnion was scrapped, re-duplicated new trunnion from old part.
Original NASA ASRS Text
Title: A B727-200 DURING REPLACEMENT OF THE L MAIN GEAR TRUNNION BEARING ASSEMBLY THE NEW FITTING WAS DRILLED INCORRECTLY. NEW PART WAS SCRAPPED.
Narrative: B727 MAIN LNDG GEAR TRUNNION, DUPLICATE HOLES FROM OLD PART TO NEW PART. IN PROCESS DIGITAL READOUT WAS MISREAD FROM 1 MACH TO THE OTHER, 9/16 HOLE WAS MISLOCATED, NEW TRUNNION WAS SCRAPPED, RE-DUPLICATED NEW TRUNNION FROM OLD PART.
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.