# N393KW: 1999 Ayres S2R-T34 - Status: Valid registration - Airframe: [Ayres S2R-T34](https://openairdocs.org/model/ayres-s2r-t34) (registry code 0970106, 1 seats) - Engine: [Pratt & Whitney Canada PT6A-42](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-42) (registry code 52062) - Data sheets: [TCDS E4EA](https://openairdocs.org/tcds/E4EA) (Pratt & Whitney Canada Corp.) (OpenAirDocs) - Serial number: T34-267 - Year built: 1999 - Type: Fixed wing single engine - Engine type: Turbo-prop - Airworthiness: Restricted, agriculture and pest control - Airworthiness date: August 24, 2016 - Certificate issued: May 19, 2025 - Expires: May 31, 2032 - Mode S code: A48EE4 - Registered owner: [Hoppe Air LLC](https://openairdocs.org/faa-owner/HOPPE%20AIR%20LLC) - Location: [Beaman, IA](https://openairdocs.org/faa-place/IA/Beaman) - Owner type: LLC - Owner's area on the map: 42.2284° N, 92.8095° W: Placed by OpenAirDocs at the center of ZIP code 50609, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=393KW - Page: https://openairdocs.org/aircraft/N393KW From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. ## ADs that may apply (OpenAirDocs): 3 in force ### Matched by airframe (Ayres S2R-T34) None in force. ### Matched by engine (Pratt & Whitney Canada PT6A-42) - [AD 2012-09-10](https://openairdocs.org/ad/2012-09-10): First stage sun gears · Pratt & Whitney Canada PT6A-110, PT6A-112, PT6A-114 and 12 more. Effective May 23, 2012 - [AD 97-04-12](https://openairdocs.org/ad/97-04-12): Compressor Bleed-off Valve · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 52 more. Effective Mar 14, 1997 - [AD 86-10-05](https://openairdocs.org/ad/86-10-05): First Stage Compressor Hub · Pratt & Whitney Canada PT6A-42. Effective Jun 5, 1986 ### Historical (superseded or no longer in force) - [AD 97-17-03](https://openairdocs.org/ad/97-17-03) (historical): Lower Spar Cap Bolt Hole Areas · Ayres 600 S-2D, S-2R, S2R-G1 and 12 more. Effective Sep 5, 1997 - [AD 97-13-11](https://openairdocs.org/ad/97-13-11) (historical): Lower Spar Cap Bolt Hole Areas · Ayres 600-S-2C, S-2R, S2R-G1 and 12 more. Effective Jul 23, 1997 ## Information bulletins (advisory) (3 in force) - [SAIB ACE-98-17](https://openairdocs.org/saib/ACE-98-17): . Issued Dec 16, 1997 - [SAIB NE-15-21](https://openairdocs.org/saib/NE-15-21): Fuel Injector Nozzle. Issued Aug 19, 2015 - [SAIB NE-06-34](https://openairdocs.org/saib/NE-06-34): . Issued Mar 21, 2006 ## NTSB investigations (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CEN25LA406](https://openairdocs.org/ntsb/CEN25LA406), Aug 26, 2025: Ayres S2R-T34 (N393KW), Beaman, IA, substantial damage. Probable cause: The pilot’s failure to maintain a proper glidepath during landing which resulted in a landing short of the runway. ## NTSB investigations on N393KW not matched to an aircraft (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB FTW98LA217](https://openairdocs.org/ntsb/FTW98LA217), May 14, 1998: Ayres SR2-T34 (N393KW), Dewitt, AR, substantial damage. Probable cause: The pilot's failure to maintain proper clearance from a fixed obstacle [utility pole] while maneuvering. A factor was pilot fatigue. ## FAA accident and incident reports (2) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20250825012119A](https://openairdocs.org/incident/20250825012119A), Aug 25, 2025: Ayeres Corporation S2R-T34 (N393KW), Beaman, IA, Substantial damage. Pilot failed to maintain altitude, landed short of the runway, main landing gear collapsed due to a hard landing. - [Incident 19990625034449I](https://openairdocs.org/incident/19990625034449I), Jun 25, 1999: Ayres S2RT34RESTD (N393KW), Dewitt, AR, Minor damage. (-23) During a crop dusting operation near Dewitt, Arkansas on June 25, 1999 at 0700, Mr. Michael meins, a commercial ag pilot, was attempting to land an Ayres… ## Reports on N393KW not matched to an aircraft (1) They name N393KW, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [Accident 19980514009659A](https://openairdocs.org/incident/19980514009659A), May 14, 1998: Ayres S2RT34NORMAL (N393KW), Dewitt, AR, Substantial damage. Acft clipped its left wing on a high line wire during aerial application, st. charles, AR. (.4)while applying chemicals to a field the pilot was maneuvering… ## Service difficulty reports None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. ## STCs that may be installed (OpenAirDocs) (10) Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do. ### Approved for the engine (Pratt & Whitney Canada PT6A-42) - [STC SE12225AC](https://openairdocs.org/stc/SE12225AC): This STC will incorporate P&W 1700 rpm propeller reduction gearbox on P&WC engines to allow 1700 rpm propeller installation. High Cotton Aircraft Conversions, LLC - [STC SE00001EN](https://openairdocs.org/stc/SE00001EN): Engines will be maintained IAW 'Maintenance or Reliable Engines(MORE) Program,' Rev 2, 8/16/95. MORE Company Inc - [STC SE00014EN](https://openairdocs.org/stc/SE00014EN): Installation 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. Pratt & Whitney Engine Services Inc - [STC SE00020EN](https://openairdocs.org/stc/SE00020EN): Installation of the Pratt & Whitney Engine Services, Inc. TrendCheck/ TrendCheck Plus Engine Monitor Kit P/N TREND-K-010-1. Pratt & Whitney Engine Services Inc - [STC SE2960SO](https://openairdocs.org/stc/SE2960SO): Installation of an oil filler cap safety adapter. Jet Avion Corporation - [STC SE615GL](https://openairdocs.org/stc/SE615GL): Incorporation of a fuel flow transducer. Shadin Avionics - [STC SE01805NY](https://openairdocs.org/stc/SE01805NY): Installation of Fuel Nozzle Adapters using studs and nuts. Atlantic Turbines International Inc - [STC SE09257SC](https://openairdocs.org/stc/SE09257SC): Convert P&W Engine Models PT6A-15AG, -27, and -28, into PT6A-34 configuration. Covington Aircraft Engines, Inc - [STC SE659NE](https://openairdocs.org/stc/SE659NE): Installation of oil tank filler neck check valve, P/N TSA-76A. Aviation Components Support - [STC SE4570SW](https://openairdocs.org/stc/SE4570SW): Revise accessory drive spline, P/N 3008181. Aviall of Texas, Inc ## Related - Other Ayres S2R-T34 aircraft: https://openairdocs.org/model/ayres-s2r-t34/aircraft.md - The Pratt & Whitney Canada PT6A-42 engine: https://openairdocs.org/engine/pratt-whitney-canada-pt6a-42.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.