- Registered owner
- Northwest Helicopters LLC
- Location
- Olympia, WA
- Owner type
- LLC
- Serial number
- 52111
- Year built
- 1994
- Type
- Rotorcraft
- Engine
- Turbo-shaft
- Airworthiness
- Standard, normal
- Airworthiness date
- November 25, 1994
- Certificate issued
- March 2, 2026
- Expires
- March 31, 2033
- Mode S code
- A9AC00
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Allison 250-C20 model are included below.
On this page
Airworthiness directives that may apply · 61
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1972 | 1 |
|---|---|
| 1973 | 1 |
| 1974 | 1 |
| 1977 | 2 |
| 1979 | 1 |
| 1980 | 1 |
| 1981 | 1 |
| 1982 | 2 |
| 1984 | 1 |
| 1989 | 1 |
| 1994 | 3 |
| 1995 | 1 |
| 1996 | 1 |
| 1999 | 5 |
| 2001 | 3 |
| 2002 | 1 |
| 2003 | 2 |
| 2004 | 1 |
| 2005 | 4 |
| 2006 | 2 |
| 2007 | 2 |
| 2008 | 2 |
| 2009 | 2 |
| 2011 | 1 |
| 2012 | 4 |
| 2013 | 4 |
| 2014 | 2 |
| 2015 | 3 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 1 |
See all 74 ADs
Information bulletins that may apply · 9
Advisory, not mandatory.
Airframe · Bell 206-L4
SAIB SW-19-05Tail Rotor Drive System, Spline DamageSAIB SW-18-02Loss of Hardware Tail Rotor Drive Shaft CouplingsSAIB SW-12-45Garmin Model 400W/500W Series GPS-WAAS Navigation SystemSAIB SW-10-42R1Emergency Float KitsSAIB SW-08-42Emergency Float with Liferaft Kits (kits)SAIB SW-05-87SAIB SW-05-24SAIB SW-04-92Engine · Allison 250-C20 series
SAIB CE-01-10Historical bulletins · 1
NTSB investigations
No NTSB investigations matched to N722LMMatched 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 Bell 206-L4 aircraft
FAA incident reports
No FAA accident or incident reports matched to N722LMMatched 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 Bell 206-L4 aircraft
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 · 372
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.