- Registered owner
- Sierra Aeronautics LLC
- Location
- Franklin, KY
- Owner type
- LLC
- Serial number
- 55998
- Type
- Rotorcraft
- Engine
- Reciprocating
- Certificate issued
- September 21, 2021
- Expires
- September 30, 2028
- Mode S code
- ADCF77
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.
| 1970 | 1 |
|---|---|
| 1975 | 1 |
Information bulletins that may apply
Advisory, not mandatory.
No bulletins matched this aircraft’s models
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 · 3
FAA accident and incident reports matched to this aircraft by N-number and event date, checked against the reported make and model.
Accident 19910318006639AFcd/Prec Ldg From Cruise · Orland, CAImpacted trees on forced landing during a spray run. Intake valve keeper failed allowed intake valve remain open.Incident 19800403047439IIdling Rotors · Marysville, CAPilot got out of idling helicopter. The craft rolled forward and down a drop-off.Accident 19790307004229AForced/Precautionary Landing · Vina, CAMain rotor drive train failed just after lift off. Helicopter made hard landing. Bounced and rolled over.
Service difficulty reports
No reports matched to N9894General 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 Sikorsky H-19D aircraft
STCs that may be installed · 10
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
Airframe · Sikorsky H-19D
STC SH3319NMInstallation of Precise Flight Pulselite Control Unit in the
Landing /Taxi Recognition Visual Control Light system,STC SR02704SEInstallation and maintenance of the Sunspot 36 and 46 series lightsSTC SR00359BOInstallation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.STC SA01406NYInstallation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine fixed light aircraft and
rotary wingSTC SR02394AKReplacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting systemSTC SA2693NMInstallation of Electronics International digital volt/amp gauges and accessories.STC SA1626NM PAGE 2Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series)STC SA4302NMInstallation of Electronics Int'l digital automatic engine analyzer.STC SH1599SORemoval of main transmission oil cooler blower and associated parts.STC SH1072SOInstallation of dust boot retainer rings (in rotor head dampers).