- Registered owner
- Northwest Helicopters I Inc
- Location
- Olympia, WA
- Owner type
- Corporation
- Serial number
- 5087
- Year built
- 1979
- Type
- Rotorcraft
- Engine
- Reciprocating
- Airworthiness
- Standard, normal
- Airworthiness date
- May 21, 1979
- Certificate issued
- May 19, 1992
- Expires
- May 31, 2027
- Mode S code
- A4B77C
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Lycoming VO-540 model are included below.
On this page
Airworthiness directives that may apply · 56
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1962 | 1 |
|---|---|
| 1964 | 1 |
| 1966 | 1 |
| 1967 | 1 |
| 1968 | 1 |
| 1969 | 3 |
| 1970 | 1 |
| 1971 | 1 |
| 1973 | 1 |
| 1974 | 3 |
| 1975 | 1 |
| 1977 | 3 |
| 1978 | 5 |
| 1979 | 1 |
| 1980 | 4 |
| 1981 | 4 |
| 1982 | 3 |
| 1983 | 1 |
| 1984 | 1 |
| 1986 | 2 |
| 1989 | 1 |
| 1991 | 1 |
| 1992 | 1 |
| 1997 | 3 |
| 2001 | 1 |
| 2004 | 1 |
| 2012 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
See all 60 ADs
Information bulletins that may apply · 2
Advisory, not mandatory.
NTSB investigations · 1
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
FAA incident reports · 1
FAA accident and incident reports matched to this aircraft by N-number and event date, checked against the reported make and model.
Service difficulty reports
No reports matched to N40277General 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 Hiller UH-12E aircraft
STCs that may be installed · 96
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
Airframe · Hiller UH-12E
STC SR04637CHReplacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control
PanelSTC SH3319NMInstallation of Precise Flight Pulselite Control Unit in the
Landing /Taxi Recognition Visual Control Light system,STC SH1152NWInstallation of the Automatic Flagman Model 135 Control Stick Grip