SA4-1429
1,200-gallon tank with hydraulically actuated doors for use in forest fire control operation. Held by Court Aircraft. Last revised January 1, 1960. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- S and R Aviation Services Inc; S and R Aviation Services Inc; S and R Aviation Services Inc; S and R Aviation Services Inc; S and R Aviation Services Inc; S and R Aviation Services Inc; S and R Aviation Services Inc
- Models
- Army B-25C, Army B-25G, Army B-25H, Army B-25J, Army B-25N, Army RB-25, Army TB-25N
- Type certificates
- AL-2, AL-2, AL-2, AL-2, AL-2, AL-2, AL-2
- 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 8, 2026.