SA3437NM
Modification to permit an increase in maximum allowable zero fuel weight of DC-8-62 airplanes, (1) which are certified to a 335,000 lbs. maximum takeoff gross weight or (2) which are certified to a 350,000 lbs. maximum takeoff gross weight. Held by Leth & Associates, which holds 5 approved modifications in all. Last revised July 16, 2002. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- McDonnell Douglas Corporation
- Models
- DC-8-62
- Type certificate
- 4A25
- On this site
- Douglas DC-8 6 registered
- 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.