| AD Number | 58-09-01 | Status | Active |
| Effective Date | Not specified | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | N/A |
| Product Type | ["Aircraft"] | Product Subtype | ["Rotorcraft"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Scotts-Bell 47 Inc |
| Model(s) | 47J |
58-09-01 BELL: Applies to Model 47J Helicopters.
Compliance required prior to next flight.
1. All 47-110-401-13 main rotor blades known to have hit an object, or to have contacted the universal joint cover on the tail boom causing an indentation over 1/4-inch deep in the universal joint cover, must be removed from service for further detail inspection, and repair if necessary. Such internal inspections and repairs are to be made by the blade manufacturer.
2. Visually inspect the stainless steel leading edge of the -13 blades for cracks and remove cracked blades. No field repairs are authorized. Cracked blades are to be returned to the blade manufacturer for detail inspection and repair.
3. Remove all 47-110-401-9 main rotor blades. These blades must be reworked to the -13 configuration prior to return to service.
CAA telegraphic instructions of April 28, 1958, covered this subject.