- Registered owner
- Koch & Koch Inc
- Location
- Grass Valley, CA
- Owner type
- Corporation
- Serial number
- TH-1730
- Year built
- 1994
- Type
- Fixed wing multi engine
- Engine
- Reciprocating
- Airworthiness
- Standard, normal
- Airworthiness date
- October 5, 1994
- Certificate issued
- August 25, 2020
- Expires
- August 31, 2027
- Mode S code
- A724AA
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Continental IO-550 model are included below.
On this page
Airworthiness directives that may apply · 83
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1966 | 1 |
|---|---|
| 1972 | 2 |
| 1973 | 3 |
| 1974 | 3 |
| 1975 | 1 |
| 1976 | 1 |
| 1977 | 2 |
| 1978 | 1 |
| 1979 | 1 |
| 1984 | 1 |
| 1987 | 2 |
| 1988 | 5 |
| 1990 | 1 |
| 1991 | 3 |
| 1992 | 1 |
| 1993 | 5 |
| 1994 | 1 |
| 1995 | 2 |
| 1996 | 1 |
| 1997 | 2 |
| 1998 | 2 |
| 1999 | 2 |
| 2000 | 4 |
| 2001 | 5 |
| 2002 | 1 |
| 2003 | 1 |
| 2004 | 2 |
| 2005 | 3 |
| 2007 | 4 |
| 2008 | 2 |
| 2009 | 2 |
| 2010 | 2 |
| 2011 | 2 |
| 2012 | 3 |
| 2013 | 1 |
| 2014 | 1 |
| 2016 | 1 |
| 2020 | 1 |
| 2022 | 3 |
| 2023 | 6 |
See all 92 ADs
Information bulletins that may apply · 19
Advisory, not mandatory.
See all 19 bulletins
NTSB investigations
No NTSB investigations matched to N56BMatched 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 Beech 58 aircraft
FAA incident reports
No FAA accident or incident reports matched to N56BMatched 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 Beech 58 aircraft
Service difficulty reports · 2
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
SDR 95ZZZX1873Bracket · brokenFOUND BOTH EXHAUST TAIL PIPE SUPPORT BRACKETS BROKEN, RT ENGINE. APPEAR TO BE BROKEN AT CREASE MARK FROM DIE DURING MANUFACTURE. FOUND DURING C/W WITH TCM CSB 9415. INSPECTION OF CRANKCASE STUDS.SDR 95ZZZX1872Bracket · brokenFOUND BOTH EXHAUST TAIL PIPE SUPPORT BRACKETS BROKEN, RT ENGINE. APPEAR TO BE BROKEN AT CREASE MARK FROM DIE DURING MANUFACTURE. FOUND DURING C/W WITH TCM CSB 94-15. INSPECTION OF CRANKCASE STUDS.
STCs that may be installed · 390
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
Airframe · Beech 58
STC SA02571SEInstallation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).STC SA01800SEFabrication and installation of new or replacement of existing instrument panel lights dimmer control.STC SA01861SEFabrication and installation of Landing Light Controller
Earlier aircraft with this N-number · 1
This aircraft carried N56B before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.