N171AR1999 Learjet 31A
Safety record in brief:No NTSB accidents or incidents since 19825 ADs may apply1 service difficulty report
Registration
FAA Aircraft Registry · Oct 17, 2026- Registered owner
- Thunderun Aviation Corp
- Owner type
- Corporation
- City, state
- Buffalo, NY
- Certificate issued
- Jul 7, 2021
- Expires
- Jul 31, 2028
- Airworthiness
- Standard · Transport
- Airworthiness date
- Mar 22, 1999
We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.
Airframe & engine
FAA Registry + type dataAirframe
- Manufacturer
- Learjet
- Model
- 31A
- Year
- 1999
- Serial number
- 171
- Aircraft type
- Fixed wing multi engine
- Category
- Land
- Certification
- Type Certificated
- Seats
- 10
- Engines
- 2
- Max takeoff weight
- 12,500 - 19,999 lb
- Mode S code
- A11CF4
Engine
- Make and model
- Alliedsign Tfe 731-2b
- Type
- Turbo-fan
- Power
- 3,500 lb thrust
Total time and engine hours aren't public. They appear here once the owner adds logbooks.
Ownership history
Ownership history from FAA records- 2021 – nowThunderun Aviation CorpBuffalo, NY · current
Individual owners are shown by city and state only.
Safety record
NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 2026 · SDRs · Oct 16, 2026NTSB events (0)
No NTSB accidents or incidents found for this airframe since 1982.
Accident history for this modelADs published since 1998 that may apply (5)
These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2007-17-17 | Learjet Model 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B, and 55C Airplanes, and Model… | Oct 2, 2007 | Airframe (31A)Serial numbers per Table 1 of this AD: Bombardier Service Bulletins 31-54-2 Rev 1 and 45-54-3 Rev 2; Learjet Service Bulletins 35/36-54-3 and 55-54-3 |
| 2005-13-36 | Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B… | Aug 9, 2005 | Airframe (31A)Serial numbers per Bombardier Alert Service Bulletins A23/24/25-27-17, A28/29-27-24, A31-27-25, A35/36-27-42 (Table 1 of this AD) |
| 2001-07-11 | Learjet Model 23, 24, 25, 28, 29, 31, 35, 36, and 55 Series Airplanes | May 1, 2001 | Airframe (31A) |
| 99-16-03 | Learjet Model 23, 24, 25, 28, 29, 31, 55, and 60 Series Airplanes | Sep 7, 1999 | Airframe (31A)Serial numbers per Learjet Service Bulletins SB 23/24/25-30-3, SB 28/29-30-3, SB 31-30-05, SB 55-30-3, and SB 60-30-4, dated October 27, 1998 |
| 95-21-03 | Learjet Model 31A and 60 Airplanes | Oct 26, 1995 | Airframe (31A)Certain serial numbers: 31A 31-093–31-108; 60 60-034–60-061 |
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
Service Difficulty Reports (1)
Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.
- Air conditioning and pressurization · unknown · smokeJul 26, 2017
SMOKE PRESENT IN CABIN AFTER TAKEOFF. DURING POST FLIGHT INSPECTION, FOUND AUXILIARY CABIN HEATER SWITCH ON. PERFORMED CABIN HEAT OPERATIONAL CHECK IAW AMM21-42-00, NO DEFECTS NOTED. COULD NOT DUPLICATE SMOKE IN CABIN.
From FAA Service Difficulty Reports; matched by N-number and serial number.
Sources
- FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
- NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
- FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
- FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026