# N55PR: 1952 Boeing E75N1 - Status: Valid registration - Airframe: [Boeing E75N1](https://openairdocs.org/model/boeing-e75n1) (registry code 1380154, 2 seats) - Engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008) - Data sheets: [TCDS A-743](https://openairdocs.org/tcds/A-743) (The Boeing Company) (OpenAirDocs) - Serial number: 75-8788 - Year built: 1952 - Type: Fixed wing single engine - Engine type: Reciprocating - Airworthiness: Standard, normal - Airworthiness date: October 12, 1994 - Certificate issued: November 4, 2013 - Expires: November 30, 2029 - Mode S code: A6FE67 - Registered owner: [Pro-Form LLC](https://openairdocs.org/faa-owner/PRO-FORM%20LLC) - Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington) - Owner type: LLC - Owner's area on the map: 39.8187° N, 75.5062° W: Placed by OpenAirDocs at the center of ZIP code 19810, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=55PR - Page: https://openairdocs.org/aircraft/N55PR From the FAA registry file of October 22, 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. The registry lists only the engine series, so ADs for every Pratt & Whitney R-985 model are included. ## ADs that may apply (OpenAirDocs): 5 in force ### Matched by airframe (Boeing E75N1) - [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023 - [AD 63-13-01](https://openairdocs.org/ad/63-13-01): Propeller Inspection · Boeing Airplane Company, Wichita Division 75 (Army PT-13), A75 (Army PT-13A, -13B, -13C), A75J1 (Army PT-18) and 9 more. Effective Jun 21, 1963 - [AD 60-08-02](https://openairdocs.org/ad/60-08-02): Longeron Cracks · Boeing Airplane Company, Wichita Division 75 (Army PT-13), A75 (Army PT-13A, -13B, -13C), A75J1 (Army PT-18) and 9 more - [AD 50-06-02](https://openairdocs.org/ad/50-06-02): Wing Spar Inspection · Boeing Airplane Company, Wichita Division 75 (Army PT-13), A75 (Army PT-13A, -13B, -13C), A75J1 (Army PT-18) and 9 more - [AD 49-23-01](https://openairdocs.org/ad/49-23-01): Fuselage Truss · Boeing Airplane Company, Wichita Division 75 (Army PT-13), A75 (Army PT-13A, -13B, -13C), A75J1 (Army PT-18) and 9 more ### Matched by engine (Pratt & Whitney R-985 series) None in force. ## Information bulletins (advisory) (1 in force) - [SAIB SW-17-28](https://openairdocs.org/saib/SW-17-28): Fuel Quantity Indicator. Issued Oct 10, 2017 ## 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 IAD96LA113](https://openairdocs.org/ntsb/IAD96LA113), Jul 6, 1996: Boeing Stearman E75N1 (N55PR), Goshen, OH, substantial damage. Probable cause: the pilot's failure to maintain adequate clearance from terrain during short final approach/landing flare. The hot temperature was a related factor. ## FAA accident and incident reports (1) 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 19960706043949A](https://openairdocs.org/incident/19960706043949A), Jul 6, 1996: Boeing E75N1 (N55PR), Goshen, OH, Substantial damage. Landed short of private strip. Hit a ditch. Impact severed landing gear. Aircraft landed on runway sans gear. (-23) no narrative. ## Reports on N55PR not matched to an aircraft (1) They name N55PR, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [Incident 19800305028559I](https://openairdocs.org/incident/19800305028559I), Mar 5, 1980: Cessna 340CESSNA (N55PR), Lafayette, LA, Minor damage. During landing rollout, crew heard loud pop. Bolt that attaches down lock bell crank assembly had failed. ## 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) (106, first 50) 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 airframe (Boeing E75N1) - [STC SA04837NY](https://openairdocs.org/stc/SA04837NY): Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights. AeroLED's Holdings, LLC - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA00079NY](https://openairdocs.org/stc/SA00079NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K008 on single and multi engine fixed wing light aircraft incorporating Teledyne Continental reciprocating engines of 450 horsepower or less. Airwolf Filter Corporation - [STC SA1208WE](https://openairdocs.org/stc/SA1208WE): Steel aileron actuating fitting replacement for Boeing P/N 75-1417. AvComp LLC - [STC SA1703WE](https://openairdocs.org/stc/SA1703WE): Installation of Serv-Aero four aileron system. AvComp, LLC. Lists E75 Series - [STC SA26WE](https://openairdocs.org/stc/SA26WE): Removable aluminum fuselage panels. (Restricted category only.). AvComp LLC - [STC SA3250NM](https://openairdocs.org/stc/SA3250NM): Installation of cockpit canopy enclosure. AvComp LLC - [STC SA3251NM](https://openairdocs.org/stc/SA3251NM): Installation of Speed Ring engine cowling. AvComp LLC - [STC SA266SW](https://openairdocs.org/stc/SA266SW): Installation of engine mount P/N M1 for Pratt & Whitney R-985 or R-1340 engine installation. AirCorps Aviation - [STC SA4-326](https://openairdocs.org/stc/SA4-326): Aerial dust and spray equipment. Texas Transland LLC - [STC SA4-589](https://openairdocs.org/stc/SA4-589): Installation of Swathmaster dispensing unit. Texas Transland LLC - [STC SA7965SW](https://openairdocs.org/stc/SA7965SW): Application of fabric and polyurethane finishing system. Shady Aviation LLC - [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC - [STC SA04568CH](https://openairdocs.org/stc/SA04568CH): Installation of the uAvionix tailBeaconX, a tail mounted position light with integrated Automatic Dependent Surveillance - Broadcast (ADS-B) Out and 1090MHz Mode-S transponder functionality. uAvionix Corporation - [STC SA04776NY](https://openairdocs.org/stc/SA04776NY): The HIPEC Covering and Finishing System must be performed and maintained. HIPEC Aircraft Coatings Inc - [STC SA220SO](https://openairdocs.org/stc/SA220SO): Tow bar, release mechanism, and safety tow link. Fliegen Works Inc. d/b/a Pacific Aerial Tow Hooks - [STC SA00410BO](https://openairdocs.org/stc/SA00410BO): Installation of an AV-30-C Multi-Mode Indicator. uAvionix Corporation - [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc - [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation - [STC SA00344BO PAGE 1](https://openairdocs.org/stc/SA00344BO%20PAGE%201): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies - [STC SA6070NM](https://openairdocs.org/stc/SA6070NM): Installation of a 'quick-disconnect drain plug' on the engine rocker sump for the oil drain retrieval system after engine shutdown. West Coast Air Creations - [STC SA00024NY](https://openairdocs.org/stc/SA00024NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K007 on single or multi-engine fixed wing light aircraft incorporating Lycoming reciprocating engines of 450 horsepower or less. Airwolf Filter Corporation - [STC SA01282NY](https://openairdocs.org/stc/SA01282NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K015 on aircraft powered by Pratt & Whitney radial reciprocating engine Series R-985, R-1340 and R-1830. Airwolf Filter Corporation - [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 SA02212AK](https://openairdocs.org/stc/SA02212AK): Replacement of existing landing and/or taxi light reflector and bulbs with high intensity discharge (HID) lighting systems. Seaplanes North LLC - [STC SA2586NM](https://openairdocs.org/stc/SA2586NM): Installation of J.P. Instruments temperature monitoring systems. J P Instruments - [STC SA01734SE](https://openairdocs.org/stc/SA01734SE): Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts. Andrew D. Humphrey - [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc - [STC ST03413CH](https://openairdocs.org/stc/ST03413CH): Installation of an aircraft smoke system. Yesteryear Aviation Inc - [STC SA02283SE PAGE 1](https://openairdocs.org/stc/SA02283SE%20PAGE%201): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc - [STC SA02402SE PAGE 1](https://openairdocs.org/stc/SA02402SE%20PAGE%201): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc - [STC SA00432SE](https://openairdocs.org/stc/SA00432SE): Installation of EGT 701 series fuel flow instrument. J P Instruments - [STC SA00861SE](https://openairdocs.org/stc/SA00861SE): Installation of J.P. Instruments (JPI) fuel flow indicating system. J P Instruments - [STC SA00068SE](https://openairdocs.org/stc/SA00068SE): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1). Electronics International Inc - [STC SA02853CH](https://openairdocs.org/stc/SA02853CH): Installation of an external step on the left hand side of the fuselage. Doubletee Products - [STC SA01169CH](https://openairdocs.org/stc/SA01169CH): Increase of maximum gross weight. Olivia Flying Service Inc. Lists E75 Series - [STC SA02045SE](https://openairdocs.org/stc/SA02045SE): Modification of aircraft, and Fabrication and installation of Big Sky Stearman 4 Aileron Kit. Big Sky Stearman - [STC SA01988SE](https://openairdocs.org/stc/SA01988SE): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P. Electronics International Inc - [STC SA01157LA](https://openairdocs.org/stc/SA01157LA): Installation of Electronics International Model FP-5 or FP-5L fuel flow/fuel pressure instrument as a replacement instrument. Electronics International Inc - [STC SA3320SO](https://openairdocs.org/stc/SA3320SO): Installation of Redling hydraulic brakes. (75 SERIES STEARMAN). Springer Aerospace LTD. Lists 75 Series - [STC SA8075SW](https://openairdocs.org/stc/SA8075SW): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER). Razorback Fabrics Inc - [STC SA1008WE](https://openairdocs.org/stc/SA1008WE): Installation of Poly-Fiber covering material. Poly-Fiber Inc. Lists 75 Series - [STC SA1002GL](https://openairdocs.org/stc/SA1002GL): Surrendered and incorporated into STC SA00478CH. Cooper Aviation Supply Company, Inc - [STC SA00453DE](https://openairdocs.org/stc/SA00453DE): Installation of Oilamatic preoiler system using FAA approved drawing list no. STEA400, Initial release, dtd 6/11/01 or later FAA approved revision. Oilamatic Inc - [STC SA2269WE](https://openairdocs.org/stc/SA2269WE): Installation of modified wheels and brakes. (All 75 Models listed on TC A-743). Denton Aircraft Company. Lists 75 Series - [STC SA2-771](https://openairdocs.org/stc/SA2-771): Installation of Fiberglass Covering. Razorback Fabrics Inc - [STC SA00061LA](https://openairdocs.org/stc/SA00061LA): Installation of JPI digital tachometer. J P Instruments - [STC SA4-227](https://openairdocs.org/stc/SA4-227): Eonite covering on wings and ailerons. Lott William C. Lists 75 Series - [STC SA8013NM](https://openairdocs.org/stc/SA8013NM): Installation of tail wheel adapter ring. R-R-R-Russ Aircraft. Lists 75 Series - [STC SA2533SO](https://openairdocs.org/stc/SA2533SO): Installation of a Teledyne Continental Motors Model W-670-6N engine and McCauley Model 41D5926 propeller. Sky-High Aviation, Inc. Lists E75 Series All 106: https://openairdocs.org/aircraft/N55PR/stcs.md ## Related - Other Boeing E75N1 aircraft: https://openairdocs.org/model/boeing-e75n1/aircraft.md - The Pratt & Whitney R-985 series engine: https://openairdocs.org/engine/pratt-whitney-r-985-series.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.