- Registered owner
- International Air Services Inc Trustee
- Location
- Carson City, NV
- Owner type
- Corporation
- Serial number
- B-120
- Type
- Fixed wing multi engine
- Engine
- Reciprocating
- Airworthiness
- Standard, normal
- Airworthiness date
- December 12, 1983
- Certificate issued
- October 8, 2026
- Expires
- October 31, 2033
- Mode S code
- A58F27
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Pratt & Whitney R-985 model are included below.
On this page
Airworthiness directives that may apply · 10
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1964 | 1 |
|---|---|
| 1971 | 2 |
| 1972 | 1 |
| 1973 | 1 |
| 1979 | 1 |
Airframe · Grumman G-21A
AD 79-02-03Engine RestartAD 73-12-06Elevator and Rudder Torque Tube FailureAD 72-11-03Engine Fuel StarvationAD 53-24-01Stabilizer Strut TerminalAD 71-12-03Flex Drive Elevator Tab ControlAD 63-27-02Rudder Control Push Rod End FittingsAD 53-21-02Horizontal Stabilizer StrutAD 50-15-01Mixture Control ReworkAD 49-16-01Fuel Tank BafflesAD 46-38-01Vacuum System TubingInformation bulletins that may apply
Advisory, not mandatory.
No bulletins matched this aircraft’s models
NTSB investigations
No NTSB investigations matched to N4575CMatched by N-number and event date, checked against the reported serial number, make and model. Investigations from before this aircraft carried the mark are under Earlier aircraft. Investigations on Grumman G-21A aircraft
FAA incident reports
No FAA accident or incident reports matched to N4575CMatched by N-number and event date, checked against the reported make and model. Reports from before this aircraft carried the mark are under Earlier aircraft. Reports on Grumman G-21A aircraft
Service difficulty reports
No reports matched to N4575CGeneral aviation reporting is voluntary. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Reports on Grumman G-21A aircraft
STCs that may be installed · 40
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
Airframe · Grumman G-21A
STC SA02571SEInstallation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).STC SA04837NYInstallation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lightsSTC SA04652CHTo allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification
Earlier aircraft with this N-number · 1
This aircraft carried N4575C before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.