- Registered owner
- N21772 LLC
- Location
- Wellington, FL
- Owner type
- LLC
- Serial number
- 970134
- Year built
- 1967
- Type
- Rotorcraft
- Engine
- Turbo-shaft
- Airworthiness
- Standard, normal
- Airworthiness date
- July 13, 1998
- Certificate issued
- January 23, 2024
- Expires
- January 31, 2031
- Mode S code
- A1D6EB
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Allison 250 model are included below.
On this page
Airworthiness directives that may apply · 94
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1968 | 2 |
|---|---|
| 1969 | 4 |
| 1970 | 1 |
| 1972 | 2 |
| 1973 | 1 |
| 1974 | 3 |
| 1975 | 3 |
| 1977 | 3 |
| 1978 | 1 |
| 1979 | 3 |
| 1980 | 4 |
| 1981 | 1 |
| 1982 | 6 |
| 1983 | 2 |
| 1984 | 3 |
| 1985 | 1 |
| 1986 | 10 |
| 1988 | 1 |
| 1989 | 4 |
| 1990 | 3 |
| 1991 | 1 |
| 1992 | 1 |
| 1994 | 1 |
| 1995 | 2 |
| 1996 | 3 |
| 1997 | 2 |
| 1998 | 3 |
| 1999 | 1 |
| 2001 | 2 |
| 2002 | 1 |
| 2003 | 3 |
| 2004 | 1 |
| 2005 | 5 |
| 2006 | 3 |
| 2007 | 2 |
| 2008 | 1 |
| 2012 | 1 |
| 2013 | 1 |
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
See all 107 ADs
Information bulletins that may apply · 6
Advisory, not mandatory.
Engine · Allison 250 series
SAIB NE-06-52SAIB NE-06-12R1SAIB NE-04-58SAIB NE-04-57SAIB NE-04-56SAIB CE-01-10Historical bulletins · 1
NTSB investigations
No NTSB investigations matched to N21772Matched 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 Hughes 369A aircraft
FAA incident reports
No FAA accident or incident reports matched to N21772Matched 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 Hughes 369A aircraft
Service difficulty reports
No reports matched to N21772General 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 Hughes 369A aircraft
STCs that may be installed · 103
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
See all 103 STCs