SA2536WE
Modification and installation of aft cargo door; cargo loading and retention system; strengthened floor support structure; increased zero fuel weight to 90,000 pounds; improved avionics and instrumentation. (Model 188A serial number 1035 and up). Held by Lockheed Martin Aeronautics Company, which holds 42 approved modifications in all. Last revised June 3, 2005. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Lockheed Martin Corporation
- Models
- 188A
- Type certificate
- 4A22
- 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 7, 2026.