ST02815AT

Installation of a cockpit door and modification of the forward bulkhead in accordance with U. S. Technical Master Drawing List Document No. 4099-25-000, revision G, dated March 4, 2004, or later FAA approved revision. FAA Approved Airplane Flight Manual Supplement (AFMS), U.S. Technical Document No. U10-0127, dated March 8, 2004, or later FAA approved revision, is a required part of this modification. Instructions for Continued Airworthiness can be found in U. S. Technical Document No. U10-0129, release 1, dated March 4, 2004, U. S. Technical Document U10-0128, release 1, dated March 4, 2004, and U. S. Technical Document U10-0130, release 1, dated March 4, 2004. Held by U.S. Technical, which holds 10 approved modifications in all. Last revised March 8, 2004. System: airframe structure.

What it applies to

Kind of product: Aircraft
Design holder: Raytheon Aircraft Company
Models: 1900D
Type certificate: A24CE
On this site: Beechcraft 1900 Airliner 157 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.