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A crj-200 nose gear door would not open during the retract sequence; which required an air turnback.
| Attributes | |
| ACN | 850586 |
| Time | |
| Date | 200908 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | Regional Jet 200 ER/LR (CRJ200) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Nose Gear |
| Person 1 | |
| Function | Inspector Technician |
| Qualification | Maintenance Powerplant Maintenance Airframe |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
I was asked to rii an installation of a nose landing gear (nlg) door selector valve on a crj-200 aircraft. I inspected the installation in accordance with (in accordance with) amm 32-22-20. All fasteners; lines and canon plugs were found to be properly installed. At that time the installation was signed off by the mechanic and inspection signed off by me. The operational checks and leak checks were not performed at this time. The installing mechanic made a non-routine (write-up) for these to be complied with. Later that evening; this work was complied with and signed off by another mechanic and inspector. I was notified that there was an in-flight discrepancy with this valve that occurred six days later. The nose landing gear did not retract after takeoff. The cause for this problem was determined to be the canon plug on this valve was disconnected. To the best of my knowledge all work was professionally done with proper tools and materials. The aircraft did fly several legs without any problems and I do recall precisely checking this canon plug and it was secure.
Original NASA ASRS Text
Title: A CRJ-200 nose gear door would not open during the retract sequence; which required an air turnback.
Narrative: I was asked to RII an installation of a nose landing gear (NLG) door selector valve on a CRJ-200 aircraft. I inspected the installation in accordance with (IAW) AMM 32-22-20. All fasteners; lines and canon plugs were found to be properly installed. At that time the installation was signed off by the Mechanic and Inspection signed off by me. The operational checks and leak checks were not performed at this time. The installing Mechanic made a non-routine (write-up) for these to be complied with. Later that evening; this work was complied with and signed off by another Mechanic and Inspector. I was notified that there was an in-flight discrepancy with this valve that occurred six days later. The nose landing gear did not retract after takeoff. The cause for this problem was determined to be the canon plug on this valve was disconnected. To the best of my knowledge all work was professionally done with proper tools and materials. The aircraft did fly several legs without any problems and I do recall precisely checking this Canon plug and it was secure.
Data retrieved from NASA's ASRS site as of April 2012 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.