SE00024EN
Installation of oil tank filler neck check valve. Held by Helicopter Support INC Services Div, which holds 13 approved modifications in all. Last revised January 30, 2004. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division
- Models
- JT9D-3A, JT9D-7, JT9D-7A, JT9D-7AH, JT9D-7F, JT9D-7H, JT9D-7J, Turbo Wasp JT8D-1, Turbo Wasp JT8D-11, Turbo Wasp JT8D-15, Turbo Wasp JT8D-17, Turbo Wasp JT8D-17R, Turbo Wasp JT8D-1A, Turbo Wasp JT8D-5, Turbo Wasp JT8D-7, Turbo Wasp JT8D-7A, Turbo Wasp JT8D-7B, Turbo Wasp JT8D-9, Turbo Wasp JT8D-9A, JT9D-59A, JT9D-70A, JT9D-7Q, JT9D-7Q3
- Type certificates
- E20EA, E20EA, E20EA, E20EA, E20EA, E20EA, E20EA, E2EA, E2EA, E2EA, E2EA, E2EA, E2EA, E2EA, E2EA, E2EA, E2EA, E2EA, E2EA, E3NE, E3NE, E3NE, E3NE
- The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 5, 2026.