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A line aircraft maintenance technician (amt) describes how a chain of events; starting with how the airbus aircraft maintenance manual (amm) is formatted; contributed to his inadvertently missing a required main landing gear (medium large transport) extension check; after replacing the right medium large transport proximity 'squat' switch on an A320 aircraft.
| Attributes | |
| ACN | 1141579 |
| Time | |
| Date | 201401 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Switch |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Experience | Maintenance Technician 27 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
[I] replaced right hand #20GA proximity switch. I have just been informed by supervision that the aircraft needed [to be] jacked to check clearance of [proximity switch] target. The aircraft maintenance manual (amm) hyperlink to this task was inadvertently missed due to the airbus aircraft maintenance manual (amm) format that is hard to navigate. I was made aware of this after another aircraft had the same switch replaced and the jacking procedure was discovered.maintenance control stopped the aircraft in ZZZ1 to comply with jacking procedures the same day. Airbus amm hyperlink format is not user friendly. Job specific hyperlinks are not located in the specific task being performed.
Original NASA ASRS Text
Title: A Line Aircraft Maintenance Technician (AMT) describes how a chain of events; starting with how the Airbus Aircraft Maintenance Manual (AMM) is formatted; contributed to his inadvertently missing a required Main Landing Gear (MLG) Extension Check; after replacing the right MLG Proximity 'Squat' switch on an A320 aircraft.
Narrative: [I] replaced right hand #20GA Proximity Switch. I have just been informed by Supervision that the aircraft needed [to be] jacked to check clearance of [Proximity switch] Target. The Aircraft Maintenance Manual (AMM) hyperlink to this Task was inadvertently missed due to the Airbus Aircraft Maintenance Manual (AMM) format that is hard to navigate. I was made aware of this after another aircraft had the same switch replaced and the jacking procedure was discovered.Maintenance Control stopped the aircraft in ZZZ1 to comply with jacking procedures the same day. Airbus AMM hyperlink format is not user friendly. Job specific hyperlinks are not located in the specific task being performed.
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.