- Registered owner
- Contractors Flight Service LLC
- Location
- La Jolla, CA
- Owner type
- LLC
- Serial number
- 421C0100
- Year built
- 1976
- Type
- Fixed wing multi engine
- Engine
- Reciprocating
- Airworthiness
- Standard, normal
- Airworthiness date
- December 17, 2003
- Certificate issued
- December 12, 2005
- Expires
- January 31, 2029
- Mode S code
- A50157
From the FAA registry file of October 22, 2026. The registry lists only the engine series, so ADs for every Continental GTSIO-520 model are included below.
On this page
Airworthiness directives that may apply · 59
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1972 | 2 |
|---|---|
| 1975 | 1 |
| 1976 | 2 |
| 1977 | 1 |
| 1978 | 2 |
| 1979 | 1 |
| 1980 | 3 |
| 1981 | 2 |
| 1984 | 2 |
| 1986 | 1 |
| 1988 | 3 |
| 1989 | 1 |
| 1990 | 1 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 1 |
| 1994 | 1 |
| 1995 | 2 |
| 1996 | 1 |
| 1997 | 1 |
| 1998 | 4 |
| 1999 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2004 | 2 |
| 2005 | 4 |
| 2007 | 1 |
| 2008 | 2 |
| 2010 | 2 |
| 2011 | 1 |
| 2012 | 1 |
| 2016 | 3 |
| 2018 | 2 |
| 2020 | 1 |
| 2022 | 1 |
| 2023 | 5 |
See all 67 ADs
Information bulletins that may apply · 17
Advisory, not mandatory.
See all 19 bulletins
NTSB investigations
No NTSB investigations matched to N421WNMatched 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 Cessna 421C aircraft
FAA incident reports
No FAA accident or incident reports matched to N421WNMatched 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 Cessna 421C aircraft
Service difficulty reports
No reports matched to N421WNGeneral 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 Cessna 421C aircraft
STCs that may be installed · 290
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
See all 290 STCs