- Registered owner
- Helicopter Applicators Inc
- Location
- Gettysburg, PA
- Owner type
- Corporation
- Serial number
- 69-16127
- Year built
- 1969
- Type
- Rotorcraft
- Engine
- Turbo-shaft
- Airworthiness
- Restricted, agriculture and pest control, aerial surveying, forest, patrolling, other
- Airworthiness date
- May 15, 1998
- Certificate issued
- May 9, 1996
- Expires
- May 31, 2027
- Mode S code
- A8A3B4
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 · 21
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 |
| 1981 | 1 |
| 1982 | 2 |
| 1984 | 1 |
| 1989 | 1 |
| 1994 | 1 |
| 1996 | 1 |
| 1999 | 1 |
| 2001 | 1 |
| 2005 | 3 |
| 2006 | 2 |
| 2012 | 1 |
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2022 | 1 |
Engine · Allison 250-C20 series
AD 2022-10-06Turbine SectionAD 2018-13-01Turbine GovernorAD 2006-16-04Inspection of the fuel nozzle screenInformation bulletins that may apply · 1
Advisory, not mandatory.
Engine · Allison 250-C20 series
SAIB CE-01-10NTSB investigations
No NTSB investigations matched to N656HAMatched 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 OH-58C aircraft
FAA incident reports
No FAA accident or incident reports matched to N656HAMatched 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 OH-58C aircraft
Service difficulty reports
No reports matched to N656HAGeneral 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 Bell OH-58C aircraft
STCs that may be installed · 8
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
Engine · Allison 250-C20 series
STC SE2352NMModification of turbine engine.STC SE5511NMInstallation of compressor discharge pressue (PC) valve.STC SE769NWInstallation of Soloy Part No. 250-1001-1 fuel line.STC SE00014ENInstallation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models.STC SE00027ENInstallation of Pratt & Whitney Engine Services Inc. Intellistart plus electronic control unit (ECU), P/N DPU-K-010 on the specified 250 engine models.STC SE492GLIncorporation of a fuel flow transducer.STC ST00037ATUnison igniter plugs, P/N 9044400-1.STC SQ00338ATUnison igniter leads, P/N9048222-101, 102, 103, 104, 105, 106.