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B787 maintenance technician reported the nose gear pin can mistakenly be installed into the nlg drag brace hollow bolt rendering the gear unsafe for ground testing.
| Attributes | |
| ACN | 1482673 |
| Time | |
| Date | 201709 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B787 Dreamliner Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Gear Pins |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy |
Narrative:
New B787 aircraft arrived for post-delivery mod. The nlg drag brace pivot link hollow bolt will accept the gear pin snuggly from lh side while the correct locking hole is 3 inches away and 'unmarked.' an inexperienced mechanic could accidentally place the locking pin in the wrong hole leading to gear collapse during ground testing damaging the aircraft and potentially injuring or killing persons in the vicinity of the gear.apply sealant or similar mitigation to the lh inside bolt hole; mark correct hole with red outline. Has previous engineering authorization been implemented on the fleet?
Original NASA ASRS Text
Title: B787 Maintenance Technician reported the nose gear pin can mistakenly be installed into the NLG drag brace hollow bolt rendering the gear unsafe for ground testing.
Narrative: New B787 aircraft arrived for post-delivery mod. The NLG drag brace pivot link hollow bolt will accept the gear pin snuggly from LH side while the correct locking hole is 3 inches away and 'unmarked.' An inexperienced mechanic could accidentally place the locking pin in the wrong hole leading to gear collapse during ground testing damaging the aircraft and potentially injuring or killing persons in the vicinity of the gear.Apply sealant or similar mitigation to the LH inside bolt hole; mark correct hole with red outline. Has previous Engineering Authorization been implemented on the fleet?
Data retrieved from NASA's ASRS site 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.