SA1767SO
Upgrades mechanical systems (torque tube, latches) of Main Deck Cargo Door, and incorporates National Aircraft Services, Inc. (NASI) STC ST01438CH that adds a vent door system with locking feature, and upgrades cargo door monitoring and warning system. This STC and the NASI STC also upgrades Maintenance Program and Documents for Continued Airworthiness for maintaining cargo door installation and rigging for mechanical, electrical, and cargo door monitoring and warning system. Held by Federal Express CORP, which holds 49 approved modifications in all. Last revised November 26, 2002. System: electrical power.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Boeing Company; The Boeing Company
- Models
- 727-200 Series, 727-100 Series
- Type certificates
- 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 7, 2026.