# Waco YKS-7 - Type: Aircraft model (FAA registry) - Registry code: 9600835 - Manufacturer (registry): WACO - Model: YKS-7 - Aircraft type: Fixed wing single engine - Category: Airplane - Engines: 1 · Reciprocating - Seats: 5 - Weight class: Up to 12,499 lb - Cruise speed: 123 mph - Certification: Type certificated - Data sheet: [TCDS TC 626](https://openairdocs.org/tcds/TC%20626) (OpenAirDocs) - Holder: The Waco Aircraft Company - Registered aircraft: 21 - Page: https://openairdocs.org/model/waco-yks-7 Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft (21) - [N17453](https://openairdocs.org/aircraft/N17453): [Eggert Thomas F](https://openairdocs.org/faa-owner/EGGERT%20THOMAS%20F), [Woodbury, MN](https://openairdocs.org/faa-place/MN/Woodbury), built 1937, S/N 4554 - [N17462](https://openairdocs.org/aircraft/N17462): [Pederson William K Jr](https://openairdocs.org/faa-owner/PEDERSON%20WILLIAM%20K%20JR), [Hillsboro, OR](https://openairdocs.org/faa-place/OR/Hillsboro), built 1937, S/N 4604 - [N17464](https://openairdocs.org/aircraft/N17464): [Consolidated Aero LLC](https://openairdocs.org/faa-owner/CONSOLIDATED%20AERO%20LLC), [Gibsonville, NC](https://openairdocs.org/faa-place/NC/Gibsonville), S/N 4605 - [N17466](https://openairdocs.org/aircraft/N17466): [Stroup David J](https://openairdocs.org/faa-owner/STROUP%20DAVID%20J), [Alliance, OH](https://openairdocs.org/faa-place/OH/Alliance), built 1937, S/N 4609 - [N17471](https://openairdocs.org/aircraft/N17471): [Gold Cap LLC](https://openairdocs.org/faa-owner/GOLD%20CAP%20LLC), [Bremerton, WA](https://openairdocs.org/faa-place/WA/Bremerton), built 1937, S/N 4614 - [N17472](https://openairdocs.org/aircraft/N17472): [Newport/Signal Air Inc](https://openairdocs.org/faa-owner/NEWPORT%2FSIGNAL%20AIR%20INC), [Signal Hill, CA](https://openairdocs.org/faa-place/CA/Signal%20Hill), built 1937, S/N 4612 - [N17473](https://openairdocs.org/aircraft/N17473): [Warwick Gregory W](https://openairdocs.org/faa-owner/WARWICK%20GREGORY%20W), [North Conway, NH](https://openairdocs.org/faa-place/NH/North%20Conway), built 1937, S/N 4611 - [N17474](https://openairdocs.org/aircraft/N17474): [Harter Mark S](https://openairdocs.org/faa-owner/HARTER%20MARK%20S), [Belleville, IL](https://openairdocs.org/faa-place/IL/Belleville), built 1937, S/N 4613 - [N17713](https://openairdocs.org/aircraft/N17713): [San Diego Air & Space Museum Inc](https://openairdocs.org/faa-owner/SAN%20DIEGO%20AIR%20%26%20SPACE%20MUSEUM%20INC), [San Diego, CA](https://openairdocs.org/faa-place/CA/San%20Diego), built 1937, S/N 4625 - [N17716](https://openairdocs.org/aircraft/N17716): [Soare Sean C](https://openairdocs.org/faa-owner/SOARE%20SEAN%20C), [Poplar Grove, IL](https://openairdocs.org/faa-place/IL/Poplar%20Grove), built 1937, S/N 4623 - [N17734](https://openairdocs.org/aircraft/N17734): [Fawcett Walter L Jr](https://openairdocs.org/faa-owner/FAWCETT%20WALTER%20L%20JR), [Wolfeboro, NH](https://openairdocs.org/faa-place/NH/Wolfeboro), built 1937, S/N 4636 - [N17736](https://openairdocs.org/aircraft/N17736): [Harders Todd M](https://openairdocs.org/faa-owner/HARDERS%20TODD%20M), [Cairo, NE](https://openairdocs.org/faa-place/NE/Cairo), built 1937, S/N 4665 - [N17737](https://openairdocs.org/aircraft/N17737): [Hoffman Allen D Sr](https://openairdocs.org/faa-owner/HOFFMAN%20ALLEN%20D%20SR), [Cheboygan, MI](https://openairdocs.org/faa-place/MI/Cheboygan), built 1937, S/N 4666 - [N1937](https://openairdocs.org/aircraft/N1937): [Nichols Charles F Trustee](https://openairdocs.org/faa-owner/NICHOLS%20CHARLES%20F%20TRUSTEE), [Baldwin Park, CA](https://openairdocs.org/faa-place/CA/Baldwin%20Park), built 1937, S/N 4631 - [N19371](https://openairdocs.org/aircraft/N19371): [Stroup David J](https://openairdocs.org/faa-owner/STROUP%20DAVID%20J), [Alliance, OH](https://openairdocs.org/faa-place/OH/Alliance), built 1938, S/N 5211 - [N19373](https://openairdocs.org/aircraft/N19373): [Niemyjski Trevor G](https://openairdocs.org/faa-owner/NIEMYJSKI%20TREVOR%20G), [Union Grove, WI](https://openairdocs.org/faa-place/WI/Union%20Grove), built 1938, S/N 5204 - [N19386](https://openairdocs.org/aircraft/N19386): [Petro Jerry R](https://openairdocs.org/faa-owner/PETRO%20JERRY%20R), [Williamsburg, VA](https://openairdocs.org/faa-place/VA/Williamsburg), built 1939, S/N 5212 - [N2629](https://openairdocs.org/aircraft/N2629): [Fulton Stephen D](https://openairdocs.org/faa-owner/FULTON%20STEPHEN%20D), [Kirkland, WA](https://openairdocs.org/faa-place/WA/Kirkland), S/N 5233 - [N2896D](https://openairdocs.org/aircraft/N2896D): [Port Townsend Aero Museum](https://openairdocs.org/faa-owner/PORT%20TOWNSEND%20AERO%20MUSEUM), [Port Townsend, WA](https://openairdocs.org/faa-place/WA/Port%20Townsend), built 1938, S/N 4692 - [N29370](https://openairdocs.org/aircraft/N29370): [Mclean Diane A](https://openairdocs.org/faa-owner/MCLEAN%20DIANE%20A), [Weirsdale, FL](https://openairdocs.org/faa-place/FL/Weirsdale), built 1940, S/N 5228 - [N65201](https://openairdocs.org/aircraft/N65201): [Ferguson Carrie L](https://openairdocs.org/faa-owner/FERGUSON%20CARRIE%20L), [Palo Alto, CA](https://openairdocs.org/faa-place/CA/Palo%20Alto), built 1937, S/N 4621 ## NTSB investigations (8) 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 GAA18CA332](https://openairdocs.org/ntsb/GAA18CA332), Jun 8, 2018: Waco YKS 7 (N17473), Fairhope, AL, substantial damage. Probable cause: The pilot’s failure to maintain directional control while landing. - [NTSB GAA16CA238](https://openairdocs.org/ntsb/GAA16CA238), May 13, 2016: Waco YKS 7 (N17734), Millersburg, OH, substantial damage. Probable cause: The pilot's loss of directional control during landing in gusting wind conditions resulting in excessive brake application, and airplane nose over. - [NTSB WPR13CA207](https://openairdocs.org/ntsb/WPR13CA207), Apr 26, 2013: Waco YKS-7 (N17472), Rialto, CA, substantial damage. Probable cause: The pilot’s failure to maintain directional control and his improper brake usage during the landing roll in a crosswind condition. - [NTSB LAX87LA005](https://openairdocs.org/ntsb/LAX87LA005), Oct 4, 1986: Waco YKS-7 (N50RA), San Diego, CA, substantial damage - [NTSB MKC76DER36](https://openairdocs.org/ntsb/MKC76DER36), Nov 1, 1975: Waco YKS7 (N17465), Duluth, MN, substantial damage - [NTSB FTW70D0028](https://openairdocs.org/ntsb/FTW70D0028), Apr 20, 1969: Waco YKS-7 (N17716), Baytown, TX, substantial damage - [NTSB DEN69F0067](https://openairdocs.org/ntsb/DEN69F0067), Jul 23, 1968: Waco YKS-7 (N1937), Albuquerque, NM, substantial damage - [NTSB SEA66D0111](https://openairdocs.org/ntsb/SEA66D0111), Aug 12, 1965: Waco YKS-7 (N19376), Klamath Falls, OR, substantial damage ## FAA accident and incident reports (5) 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. - [Incident 20180608007349I](https://openairdocs.org/incident/20180608007349I), Jun 8, 2018: Waco YKS-7 (N17473), Fairhope, AL, Minor damage. Airman was landing on runway 19 with light and variable winds. During rollout, aircraft drifted right of centerline in response to light crosswind from the… - [Accident 20130426007059A](https://openairdocs.org/incident/20130426007059A), Apr 26, 2013: Waco YKS-7 (N17472), Rialto, CA, Substantial damage. Aircraft departed flabob airport (rir) at 1145L for Rialto airport (L67) to do pattern work. Pilot lost control of conventional gear aircraft during wheel… - [Incident 20050202004239I](https://openairdocs.org/incident/20050202004239I), Feb 2, 2005: Waco YKS7 (N17716), Oshkosh, WI, Minor damage. (-23) After 40 minutes of local flight engine started to surge due to fuel depletion. Landed aircraft in field after engine shut down. - [Accident 19861004047669A](https://openairdocs.org/incident/19861004047669A), Oct 4, 1986: Waco YKS7 (N50RA), San Diego, CA, Substantial damage. Engine quit. Emergency landing. Collided with sand trap on golf course. Fuel exhaustion. Faulty fuel gauge. - [Accident 19751101036549A](https://openairdocs.org/incident/19751101036549A), Nov 1, 1975: Waco YKS7 (N17465), Duluth, MN, Substantial damage. Ldg on soft farm fld. ## STCs that may be installed (OpenAirDocs) (10) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC - [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc - [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc - [STC SA01406NY](https://openairdocs.org/stc/SA01406NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine fixed light aircraft and rotary wing. Airwolf Filter Corporation - [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc - [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. M-20 Oil Separators LLC - [STC SA2350NM PAGE 2](https://openairdocs.org/stc/SA2350NM%20PAGE%202): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International - [STC SA2190NM PAGE 2](https://openairdocs.org/stc/SA2190NM%20PAGE%202): Installation of electronics International Digital Volt/Amp Gauges and Accessories. Electronics International - [STC SA2350NM](https://openairdocs.org/stc/SA2350NM) (historical): Installation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories. Electronics International --- 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.