ST338CH
Installation of replacement lavatory cartridge heater. Held by Aircraft Food Service Equipment Repair, which holds 14 approved modifications in all. Last revised June 2, 1995. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; Airbus; The Boeing Company
- Models
- A300 B4-103, A300 B2-1C, A300 B2-203, A300 B4-600 Series, A300 B4-600R Series, A310 200 Series, A310 300 Series, A300 B2-1A, 757-200
- Type certificates
- A35EU, A35EU, A35EU, A35EU, A35EU, A35EU, A35EU, A35EU, A2NM
- On this site
- Airbus A300 120 registered
Boeing 757 440 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.