| AD Number | 75-04-02 | Status | Active |
| Effective Date | February 19, 1975 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-2082 |
| Product Type | ["Aircraft"] | Product Subtype | ["Rotorcraft"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Orlando Helicopter Airways, Inc. Sikorsky Aircraft Corporation |
| Model(s) | CH-19E H-19A H-19D H-19G HRS-1/CH-19 HRS-3/H-19B UH-19D S-55 S-55B S-55C S62A |
75-04-02 SIKORSKY AIRCRAFT: Amendment 39-2082. Applies to S-55, S-55B, S-55C and S-62A Helicopters certificated in all categories, including military type HRS-1, HRS-3, CH-19, H-19B, H-19G, H-19A, H-19D, HO4S-3G, UH-19D, H19D5, UH-19B, UH-19D helicopters, equipped with P/N S10-10-3325-1 and S10-10-3325-2 main rotor spindles.
(a) Within the next 10 hours' time in service after the effective date of this AD, unless already accomplished within the preceding 50 hours' time in service, conduct a dye penetrant inspection of the exposed areas of the lugs of the main rotor spindles.
(b) If a crack is found during the above inspection, replace the cracked spindle with a spindle that has been inspected in accordance with paragraph (a) above and found to be free of cracks, prior to flight.
(c) Report in writing any cracks found during the inspection of paragraph (a) to: Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803. Each report must include the length and location of the cracks and the total time in service of the spindle.
Sikorsky message SST62A6C74.3 covers this inspection.
This amendment becomes effective February 19, 1975.