- Registered owner
- Treeline Helicopters Inc
- Location
- Bristol, TN
- Owner type
- Corporation
- Serial number
- TH-471
- Type
- Fixed wing multi engine
- Engine
- Reciprocating
- Airworthiness
- Standard, normal
- Airworthiness date
- April 26, 1974
- Certificate issued
- March 13, 2025
- Expires
- March 31, 2032
- Mode S code
- A4D22E
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Continental IO-520 model are included below.
On this page
Airworthiness directives that may apply · 91
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 | 3 |
| 1973 | 3 |
| 1974 | 4 |
| 1975 | 1 |
| 1976 | 1 |
| 1977 | 3 |
| 1978 | 1 |
| 1979 | 2 |
| 1980 | 2 |
| 1981 | 2 |
| 1984 | 1 |
| 1987 | 3 |
| 1988 | 5 |
| 1990 | 1 |
| 1991 | 3 |
| 1992 | 1 |
| 1993 | 5 |
| 1994 | 1 |
| 1995 | 2 |
| 1996 | 1 |
| 1997 | 2 |
| 1998 | 4 |
| 1999 | 2 |
| 2000 | 4 |
| 2001 | 5 |
| 2002 | 1 |
| 2003 | 1 |
| 2004 | 2 |
| 2005 | 3 |
| 2007 | 3 |
| 2008 | 2 |
| 2009 | 2 |
| 2010 | 2 |
| 2011 | 1 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 1 |
| 2016 | 1 |
| 2022 | 3 |
| 2023 | 6 |
See all 101 ADs
Information bulletins that may apply · 19
Advisory, not mandatory.
See all 19 bulletins
NTSB investigations
No NTSB investigations matched to N41ECMatched 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 · 5
FAA accident and incident reports matched to this aircraft by N-number and event date, checked against the reported make and model.
Incident 20120603011199ITakeoff: Departure Roll · Manning, SCDuring taxi the pilot selected the gear up which resulted in the landing gear to retract during takeoff role and the aircraft settled back on the runway damageing the landing gear doors and both the left and right propellers. No injury or fire.Incident 20110917021549ILanding: Rollout · Concord, NCDuring approach to jqf the landing gear was selected down. A loud pop was heard when the gear started down. The main gear had green lights and the nose did not. Verified nose gear light bulb for operation. Recycled gear four times and then flew past the tower…Incident 19910412013809IRoll-Out (Fixed Wing) · Atlanta, GANose gear collapsed on landing rollout. Suspect nose gear linkage and strut malfunction.Incident 19860523027669ILevel Off Touchdown · Griffin, GALeft main gear could not be extended for landing. Found gear uplock spring was unhooked from the bracket.Incident 19840116002509IRoll-Out (Fixed Wing) · Angleton, TXBounced and porpoised on landing. Tried to correct by raising flaps. Retracted the gear instead.
Service difficulty reports · 1
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
STCs that may be installed · 436
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