What it approves
Extension of main rotor blade, P/N 61170-20201 series. For model S-61A, serial numbers 61-063, 61-147, 61-232, 61-272; for model S-61N, 61-216, 61-220, 61-242, 61-744; for model S-61R, 61-551.
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
No AD in this release names this STC
Approved models · 6
| Make | Model | Data sheet |
|---|---|---|
| Sikorsky Aircraft Corporation | S-61A (U.S. Navy HSS-2) | H2EA |
| Sikorsky Aircraft Corporation | S-61A (U.S. Navy SH-3A) | H2EA |
| Sikorsky Aircraft Corporation | S-61A (USAF CH-3B) | H2EA |
| Sikorsky Aircraft Corporation | S-61N | 1H15 |
| Sikorsky Aircraft Corporation | S-61R (USAF CH-3C) | 1H15 |
| Sikorsky Aircraft Corporation | S-61R (USAF CH-3E) | 1H15 |