ST00731SE
Defines cargo loads and cargo load limitations for 727 Series airplanes converted from passenger airplanes to cargo airplanes per the STC SA1368SO, or SA1444SO, or SA1509SO and SA1667SO for the 727-100 Series airplane, and STC SA1509SO and SA1543SO, or SA1797SO and SA1798SO for the 727-200 Series airplane. Held by Altair Holdings Limited, which holds 9 approved modifications in all. Last revised September 5, 2001. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company; The Boeing Company
- Models
- 727 Series, 727-100C Series, 727-100 Series, 727C Series, 727-200F Series, 727-200 Series
- Type certificates
- A3WE, A3WE, A3WE, A3WE, A3WE, A3WE
- On this site
- Boeing 727 37 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.