ST01901AT
Installation of a smoke detection and fire suppression system in the lower cargo compartments. Held by Jetaire Aerospace & Technology INC, which holds 5 approved modifications in all. Last revised June 2, 2000. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation
- Models
- DC-9-83 (MD-83), DC-9-82 (MD-82), MD-88, MD-90-30, DC-9-81 (MD-81)
- Type certificates
- A6WE, A6WE, A6WE, A6WE, A6WE
- On this site
- Mcdonnell Douglas Aircraft Co MD-88 10 registered
Mcdonnell Douglas DC-9 93 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.