SE02712SE
Installation of the Oil Scavenging Pump System for Jacobs L-4 and R-755. Held by Henry F. Rogers. Last revised March 12, 2021. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Boeing Airplane Company Wichita Division; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company ATC; The Waco Aircraft Company ATC; The Waco Aircraft Company ATC; The Waco Aircraft Company ATC; The Waco Aircraft Company ATC; The Waco Aircraft Company TC; The Waco Aircraft Company TC
- Models
- A75J1 (Army PT-18), 195, 195A, 195B, YKC, YKC-S, YKS-6, YMF, YOC, YPF, YPF-6, YPF-7, YQC-6, YKS-7 (Army UC-72K)
- Type certificates
- A-743, A-790, A-790, A-790, A-533, A-533, A-533, 542, 569, 586, 586, 586, 598, 626
- 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 7, 2026.