- Registered owner
- Silent Knights Inc
- Location
- Ankeny, IA
- Owner type
- Corporation
- Serial number
- 20
- Year built
- 1970
- Type
- Glider
- Engine
- None
- Airworthiness
- Standard, glider
- Airworthiness date
- March 20, 1970
- Certificate issued
- May 13, 2021
- Expires
- May 31, 2028
- Mode S code
- AA52BC
From the FAA registry file of October 24, 2026.
On this page
Airworthiness directives that may apply · 2
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1987 | 1 |
|---|---|
| 1988 | 1 |
Airframe · Schweizer SGS 1-34
AD 87-17-01Tow Release InstallationAD 87-02-01Tow-Release Installation InspectionInformation bulletins that may apply
Advisory, not mandatory.
No bulletins matched this aircraft’s models
NTSB investigations
No NTSB investigations matched to N7640Matched 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 Schweizer SGS 1-34 aircraft
FAA incident reports · 1
FAA accident and incident reports matched to this aircraft by N-number and event date, checked against the reported make and model.
Service difficulty reports
No reports matched to N7640General 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 Schweizer SGS 1-34 aircraft
STCs that may be installed · 1
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
Earlier aircraft with this N-number · 1
This aircraft carried N7640 before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.