| AD Number | 50-08-01 | 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) | Sikorsky Aircraft Corporation |
| Model(s) | S-51 |
50-08-01 SIKORSKY: Applies to All Model S-51 Helicopters.
Compliance required at each 25-hour inspection.
Inspect the upper longerons, Drawing S-520879, of the S-10-20-3003 tail cone mounting assembly for cracks in the area adjacent to the generator support plate and clamps, and in all the welds on the longerons adjacent to the clamps. If cracks are found, the defective member should be reinforced or replaced prior to continuing flight.
(Sikorsky Service Information Circular No. 38, Revision A, dated January 4, 1950, covers this same subject.)
This supersedes AD 48-11-03.