ST01338CH
Installation of an Auxiliary Power Unit Door Actuator System. Held by Woodward Mpc, which holds 2 approved modifications in all. Last revised November 20, 2009. System: engine.
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; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation; McDonnell Douglas Corporation
- Models
- DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F, DC-10-40, DC-10-40F, MD-10-10F, MD-10-30F, MD-11, MD-11F
- Type certificates
- A22WE, A22WE, A22WE, A22WE, A22WE, A22WE, A22WE, A22WE, A22WE, A22WE, A22WE
- On this site
- Douglas DC-10 8 registered
Mcdonnell Douglas DC-10 17 registered
Mcdonnell Douglas MD-10 15 registered
Mcdonnell Douglas MD-11 104 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 13, 2026.