ST00719AT

Approval of increased operating weights as substantiated by the design data listed in Structural Integrity Engineering (SIE) Master Report List or Master Document List No. SIE-28-703, no revision, dated February 24, 1995, or later FAA approved revision. Aircraft with Increase of Maximum Takeoff or Landing Weight must also be modified in accordance with: Drawing SIE-28-901 (taxi weight up to 183,000 lb, landing weight to 164,000 lb), 28-904 (taxi weight up to 178, 500 lbs, landing weight to 164,000 lbs), 28-905 (taxi weight up to 191,000 lb, landing weight to 164,000 lbs), Rev NC or later FAA approved revisions. Held by Structural Integrity Engineering, which holds 23 approved modifications in all. Last revised December 29, 2003. System: airframe structure.

What it applies to

Kind of product: Aircraft
Design holder: The Boeing Company
Models: 727-200 Series
Type certificate: 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.