ST01445LA
Mechanical Shut Off Valve-Toilet Assembly Installation in accordance with FAA Approved Monogram Systems Top Drawing List, Report Number TDL5888, Revision C, dated April 3, 2003, or later FAA approved revision. Held by Monogram Systems, which holds 33 approved modifications in all. Last revised August 13, 2003. System: engine.
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
- 737-100 Series, 737-200 Series, 737-200C Series, 737-300 Series, 737-400 Series, 737-500 Series
- Type certificates
- A16WE, A16WE, A16WE, A16WE, A16WE, A16WE
- On this site
- Boeing 737 2,893 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 21, 2026.