SE83WE
Installation of heat shield assembly P/N 408-007 as a replacement part for P&W P/N499941 or 749609 used on JT8D-1, -5, -7, -9, -9A, -15 and -17 engines. Held by Hughes Helicopter, which holds 6 approved modifications in all. Last revised November 15, 1977. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Pratt & Whitney Division
- Models
- JT8D Series
- Type certificate
- E2EA
- 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 20, 2026.