SA02682AT
Replacement of original chevron seals with improved Main Landing Gear Dynamic Seal, P/N: AR1102 and Adapter Ring, P/N: AR1101. Held by Air Repair INC., which holds 4 approved modifications in all. Last revised July 27, 2023. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Boeing Airplane Company Wichita Division
- Models
- 75 (Army PT-13)
- Type certificate
- A-743
- On this site
- Boeing 75 18 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 5, 2026.