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A technician reports that in the cessna ce-560XL maintenance manual 27-90-3--720; step (D); monel rivets are said to be identified 'by dimple heads'. Industry standards use 'double dimple' as the head marking. Maintenance manual needs revising to have the mechanic check that 'double dimple head' monel type rivets are installed in the elevator area; not 'dimple heads'.
| Attributes | |
| ACN | 1000414 |
| Time | |
| Date | 201203 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Citation Excel (C560XL) |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Elevator |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
In the cessna ce-560XL maintenance manual 27-90-30-720; step (D); monel rivets are said to be identified 'by dimple heads'. Industry uses 'double dimple' as the head marking for monel MS20615M rivets. Rivets with one dimple would be standard aluminum alloy rivets and would be unsuited for the elevator location described in the above reference. Suggest the maintenance manual reference needs revising to have the mechanic inspecting for 'double dimple' heads; not 'dimple heads'.
Original NASA ASRS Text
Title: A Technician reports that in the Cessna CE-560XL Maintenance Manual 27-90-3--720; Step (D); Monel rivets are said to be identified 'by Dimple heads'. Industry standards use 'Double Dimple' as the head marking. Maintenance Manual needs revising to have the Mechanic check that 'Double Dimple head' Monel type rivets are installed in the Elevator area; not 'Dimple heads'.
Narrative: In the Cessna CE-560XL Maintenance Manual 27-90-30-720; Step (D); Monel rivets are said to be identified 'by dimple heads'. Industry uses 'Double Dimple' as the head marking for Monel MS20615M rivets. Rivets with one dimple would be standard aluminum alloy rivets and would be unsuited for the elevator location described in the above reference. Suggest the Maintenance Manual reference needs revising to have the Mechanic inspecting for 'Double Dimple' heads; not 'Dimple heads'.
Data retrieved from NASA's ASRS site as of July 2013 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.