- Registered owner
- Armstrong Airlines Inc
- Location
- Dover, DE
- Owner type
- Corporation
- Serial number
- 31T-8120006
- Year built
- 1980
- Type
- Fixed wing multi engine
- Engine
- Turbo-prop
- Airworthiness
- Standard, normal
- Airworthiness date
- October 24, 1980
- Certificate issued
- May 28, 2008
- Expires
- June 30, 2027
- Mode S code
- ADF161
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Pratt & Whitney PT6A-28 model are included below.
On this page
Airworthiness directives that may apply · 54
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1969 | 1 |
|---|---|
| 1975 | 2 |
| 1976 | 3 |
| 1977 | 2 |
| 1978 | 2 |
| 1979 | 6 |
| 1980 | 6 |
| 1981 | 3 |
| 1982 | 1 |
| 1983 | 1 |
| 1985 | 1 |
| 1990 | 1 |
| 1992 | 1 |
| 1993 | 1 |
| 1994 | 2 |
| 1996 | 4 |
| 1997 | 3 |
| 1998 | 3 |
| 1999 | 1 |
| 2000 | 1 |
| 2001 | 2 |
| 2002 | 1 |
| 2004 | 1 |
| 2005 | 3 |
| 2009 | 1 |
| 2011 | 3 |
| 2012 | 1 |
| 2014 | 1 |
| 2017 | 1 |
See all 59 ADs
Information bulletins that may apply · 5
Advisory, not mandatory.
Airframe · Piper PA-31T
SAIB CE-17-05Electrical Power/Electrical Power System WiringSAIB CE-08-11Landing GearSAIB ACE-98-01SAIB ACE-96-16Engine · Pratt & Whitney PT6A-28 series
SAIB NE-12-04Turbine/ Turboprop Engine: Reduction GearboxNTSB investigations
No NTSB investigations matched to N998LMMatched 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 Piper PA-31T aircraft
FAA incident reports
No FAA accident or incident reports matched to N998LMMatched 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 Piper PA-31T aircraft
Service difficulty reports
No reports matched to N998LMGeneral 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 Piper PA-31T aircraft
STCs that may be installed · 246
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
Airframe · Piper PA-31T
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