- Registered owner
- Hendrickson Flying Service Inc
- Location
- Rochelle, IL
- Owner type
- Corporation
- Serial number
- TC-TWH-1
- Year built
- 1975
- Type
- Rotorcraft
- Engine
- Reciprocating
- Airworthiness
- Restricted, agriculture and pest control
- Airworthiness date
- April 2, 1992
- Certificate issued
- May 18, 2011
- Expires
- May 31, 2027
- Mode S code
- A26D55
Continental Copters-Transworld TOM CAT MARK 5ATCDS H5SWAirframe · Continental Copters-Transworld TOM CAT MARK 5ATCDS E-279Engine · Lycoming VO-435 series
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.
NTSB NYC01LA130Accident · No injuriesLimited investigationFinal reportBenton, PAThe pilot's inadequate preflight inspection, which resulted in a takeoff with a hose still attached and a subsequent dynamic rollover.NTSB CHI88DEX11Accident · 1 fatalFinal reportRedkey, INPhysical impairment of the pilot due to drugs which resulted in a misjudged approach and subsequent contact with trees during the approach to an aerial application swath run.
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.
Accident 20010529017659ATo Vertical (Helicopter Only) · Benton, PA(-23) In may 29, 2001, about 0718 eastern daylight time, a Continental copters tom cat mark 5A (a modified bel 47 helicopter), N25561, was substantially damaged during takeoff from a field in Benton, PA. The certificated commerical pilot was not injured.…Accident 19880810033729ALow Level Operations · Redkey, INOn a spray turn around, crashed after striking a tree. High level of medical drugs in pilot.
Service difficulty reports
No reports matched to N25561General 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 Continental Copters-Transworld TOM CAT MARK 5A aircraft
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
STC SE2932SWInstall carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive.STC SE01954SEInstallation of engine crankcase seal.STC SE01966WIUse of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines