SA979CE-D
Passenger interior arrangement modified to 5 pallet cargo/passenger configuration, per Boeing Dwg. 65-88752 & 65-88753, cargo conversion capability, Class B compartment with passengers, Class E compartment with no passengers. (707-347C). Held by Boeing Company, which holds 64 approved modifications in all. Last revised July 1, 1975. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company
- Models
- 707
- Type certificate
- 4A26
- On this site
- Boeing 707 9 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 7, 2026.