- Registered owner
- Larson Mark D
- Location
- Perham, MN
- Owner type
- Individual
- Serial number
- WS104
- Year built
- 1975
- Type
- Rotorcraft
- Engine
- Reciprocating
- Airworthiness
- Restricted, agriculture and pest control
- Airworthiness date
- March 26, 1975
- Certificate issued
- February 4, 2013
- Expires
- February 28, 2029
- Mode S code
- A401D7
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Lycoming VO-435 model are included below.
On this page
Airworthiness directives that may apply · 9
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1968 | 1 |
|---|---|
| 1969 | 2 |
| 1980 | 1 |
| 1991 | 1 |
| 2004 | 1 |
| 2012 | 1 |
| 2022 | 1 |
| 2024 | 1 |
| 2026 | 1 |
Engine · Lycoming VO-435 series
AD 2026-04-11Engine (Reciprocating)AD 2022-16-03Engine (RECIPROCATING)AD 2012-03-07CarburetorAD 2004-10-14Crankshaft gearAD 90-04-06 R1Propeller Governor External Oil LineAD 80-04-04 R1Crankshaft Flange BoltsAD 69-24-03CarburetorsAD 66-06-03Connecting Rod AssembliesAD 68-08-08Hydraulic ValveSuperseded and historical ADs · 1
Information bulletins that may apply · 2
Advisory, not mandatory.
NTSB investigations · 2
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
FAA incident reports · 2
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
STCs that may be installed · 23
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
Engine · Lycoming VO-435 series
Earlier aircraft with this N-number · 1
This aircraft carried N3575B before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.