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FAA Notice of Intent to Designate Century Flight Systems STCs as Abandoned

FR: Federal Aviation Administration

Published March 19th, 2026

Detected March 19th, 2026

Summary

The FAA intends to designate 765 Supplemental Type Certificates (STCs) from Century Flight Systems, Inc. as abandoned due to inability to contact the company. This action aims to make related engineering data available and enhance aviation safety. The FAA is requesting comments on this proposed designation.

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What changed

The Federal Aviation Administration (FAA) has issued a Notice of Intent to designate 765 Supplemental Type Certificates (STCs) held by Century Flight Systems, Inc. as abandoned. This action is prompted by the FAA's inability to contact Century Flight Systems, Inc. and is intended to make the associated engineering data accessible, thereby enhancing aviation safety. The notice specifically lists the STC numbers and invites public comment.

Regulated entities, particularly manufacturers and operators who may rely on or be affected by these STCs, should review the listed STC numbers and consider submitting comments to the FAA by the September 15, 2026 deadline. Failure to comment may result in the STCs being formally declared abandoned, which could impact the availability of critical engineering data for aircraft modifications and repairs. This action is part of the FAA's ongoing efforts to manage and ensure the integrity of aviation safety data.

What to do next

Review the list of 765 Century Flight Systems, Inc. STCs proposed for abandonment.
Submit comments to the FAA by September 15, 2026, if there are objections or concerns.
Assess potential impact on existing operations or future modifications if STCs are declared abandoned.

Source document (simplified)

Notice

Notice of Intent To Designate as Abandoned Century Flight Systems, Inc. Supplemental Type Certificates

A Notice by the Federal Aviation Administration on 03/19/2026

This document has a comment period that ends in 180 days.
(09/15/2026) View Comment Instructions
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Public Inspection Published Document: 2026-05324 (91 FR 13395) Document Headings ###### Department of Transportation

Federal Aviation Administration

[Docket No. FAA-2026-2718]

AGENCY:

Federal Aviation Administration (FAA), DOT.

ACTION:

Notice of intent to designate Century Flight Systems, Inc., supplemental type certificates as abandoned; request for comments.

SUMMARY:

This notice announces the FAA's intent to designate 765 Century Flight Systems, Inc., Supplemental Type Certificates (STCs) as abandoned and make the related engineering data available upon request. The FAA has received a request to provide engineering data concerning these STCs. The FAA has been unsuccessful in contacting Century Flight Systems, Inc., concerning these STCs. This action is intended to enhance aviation safety.

DATES:

The FAA must receive all comments by September 15, 2026.

ADDRESSES:

You may send comments on this notice by any of the following methods:

Federal eRulemaking Portal: Go to regulations.gov. Follow the instructions for submitting comments.
Mail: Aourolia Kristianti, AIR-761, Federal Aviation Administration, Central Certification Branch, 1801 South Airport Rd., Room 100, Wichita, KS 67209.
Email: 9-AVS-CCB-Correspondence@faa.gov. Include “Docket No. FAA-2026-2718” in the subject line of the message.
Hand Delivery: Deliver to Mail address above between 8 a.m. and 5 p.m., Monday through Friday, except Federal holidays.

FOR FURTHER INFORMATION CONTACT:

Aourolia Kristianti, Aviation Safety Specialist, Federal Aviation Administration, Central Certification Branch, 1801 South Airport Rd., Room 100, Wichita, KS 67209; telephone (316) 946-4121; email 9-AVS-CCB-Correspondence@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

The FAA invites interested parties to provide comments, written data, views, or arguments relating to this notice. Send your comments to an address listed under ADDRESSES. Include “Docket No. FAA-2026-2718” at the beginning of your comments. The FAA will consider all comments received on or before the closing date. All comments received will be available in the docket for examination by interested persons.

Background

The FAA is posting this notice to inform the public that the FAA intends to designate as abandoned and subsequently release the related engineering data for the following Century Flight Systems, Inc. STC Nos.: SA08528SW-D, SA09623AC, SA09666AC, SA1006SW, SA1026SW, SA1027SW, SA1053SW, SA1065SW, SA1080SW, SA1081SW, SA1091SW, SA1118SW, SA1142SW, SA1157SW, SA1158SW, SA1172SW, SA1173SW, SA1174SW, SA1175SW, SA1190SW, SA1195SW, SA1196SW, SA1199SW, SA1204SW, SA1205SW, SA1206SW, SA1211SW, SA1218SW, SA1219SW, SA1220SW, SA1221SW, SA1231SW, SA1232SW, SA1233SW, SA1234SW, SA1235SW, SA1236SW, SA1237SW, SA1244SW, SA1255SW, SA1262SW, SA1265SW, SA1269SW, SA1270SW, SA1272SW, SA1276SW, SA1299SW, SA1300SW, SA1312SW, SA1321SW, SA1322SW, SA1323SW, SA1325SW, SA1326SW, SA1327SW, SA1331SW, SA1334SW, SA1342SW, SA1343SW, SA1346SW, SA1348SW, SA1351SW, SA1359SW, SA1360SW, SA1365SW, SA1366SW, SA1376SW, SA1377SW, SA1378SW, SA1386SW, SA1393SW, SA1394SW, SA1402SW, SA1403SW, SA1404SW, SA1406SW, SA1409SW, SA1410SW, SA1417SW, SA1430SW, SA1431SW, SA1441SW, SA1442SW, SA1449SW, SA1454SW, SA1458SW, SA1472SW, SA1478SW, SA1479SW, SA1486SW, SA1494SW, SA1500SW, SA1501SW, SA1502SW, SA1503SW, SA1504SW, SA1505SW, SA1506SW, SA1507SW, SA1510SW, SA1517SW, SA1520SW, SA1521SW, SA1522SW, SA1523SW, SA1524SW, SA1526SW, SA1554SW, SA1555SW, SA1556SW, SA1565SW, SA1571SW, SA1572SW, SA1578SW, SA1579SW, SA1580SW, SA1594SW, SA1607SW, SA1608SW, SA1609SW, SA1611SW, SA1612SW, SA1634SW, SA1635SW, SA1638SW, SA1640SW, SA1644SW, SA1645SW, SA1653SW, SA1667SW, SA1668SW, SA1672SW, SA1687SW, SA1701SW, SA1704SW, SA1716SW, SA1717SW, SA1722SW, SA1741SW, SA1743SW, SA1744SW, SA1775SW, SA1777SW, SA1786SW, SA1787SW, SA1797SW, SA1798SW, SA1799SW, SA1808SW, SA1811SW, SA1812SW, SA1845SW, SA1846SW, SA1865SW, SA1866SW, SA1887SW, SA1902SW, SA1922SW, SA3001SW-D, SA3002SW-D, SA3003SW-D, SA3004SW-D, SA3005SW-D, SA3006SW-D, SA3007SW-D, SA3008SW-D, SA3009SW-D, SA3010SW-D, ( printed page 13396) SA3011SW-D, SA3012SW-D, SA3013SW-D, SA3014SW-D, SA3015SW-D, SA3016SW-D, SA3017SW-D, SA3018SW-D, SA3019SW-D, SA3020SW-D, SA3021SW-D, SA3022SW-D, SA3023SW-D, SA3024SW-D, SA3025SW-D, SA3026SW-D, SA3027SW-D, SA3028SW-D, SA3029SW-D, SA3030SW-D, SA3031SW-D, SA3032SW-D, SA3033SW-D, SA3034SW-D, SA3035SW-D, SA3036SW-D, SA3037SW-D, SA3038SW-D, SA3039SW-D, SA3040SW-D, SA3041SW-D, SA3042SW-D, SA3043SW-D, SA3044SW-D, SA3045SW-D, SA3046SW-D, SA3047SWD, SA3047SW-D, SA3048SWD, SA3048SW-D, SA3049SWD, SA3049SW-D, SA3050SW-D, SA3051SW-D, SA3052SW-D, SA3053SW-D, SA3054SW-D, SA3055SW-D, SA3056SW-D, SA3057SW-D, SA3058SW-D, SA3059SW-D, SA3060SW-D, SA3061SW-D, SA3062SW-D, SA3063SW-D, SA3064SW-D, SA3065SW-D, SA3066SW-D, SA3067SW-D, SA3068SW-D, SA3069SW-D, SA3070SW-D, SA3071SW-D, SA3072SW-D, SA3073SW-D, SA3074SW-D, SA3075SW-D, SA3076SW-D, SA3077SW-D, SA3078SW-D, SA3079SW-D, SA3080SW-D, SA3081SW-D, SA3082SW-D, SA3083SW-D, SA3084SW-D, SA3085SW-D, SA3086SW-D, SA3087SW-D, SA3088SW-D, SA3089SW-D, SA3090SW-D, SA3091SW-D, SA3092SW-D, SA3094SW-D, SA3095SW-D, SA3096SW-D, SA3097SW, SA3098SW-D, SA3099SW-D, SA3100SW-D, SA3101SW-D, SA3102SW-D, SA3103SW-D, SA3104SW-D, SA3105SW-D, SA3106SW-D, SA3107SW-D, SA3108SW-D, SA3109SW-D, SA3110SW-D, SA3111SW-D, SA3112SW-D, SA3113SW-D, SA3114SW-D, SA3115SW-D, SA3116SW-D, SA3117SW-D, SA3118SW-D, SA3120SW-D, SA3121SW-D, SA3122SW-D, SA3123SW-D, SA3124SW-D, SA3125SW-D, SA3126SW-D, SA3127SW-D, SA3128SW-D, SA3129SW-D, SA3130SW-D, SA3131SW-D, SA3133SW-D, SA3134SW-D, SA3135SW-D, SA3136SW-D, SA3137SW-D, SA3138SW-D, SA3139SW-D, SA3140SW-D, SA3141SW-D, SA3142SW-D, SA3143SW-D, SA3144SW-D, SA3145SW-D, SA3146SW-D, SA3147SW-D, SA3148SW-D, SA3149SW-D, SA3150SW-D, SA3151SW-D, SA3152SW-D, SA3153SW-D, SA3154SW-D, SA3155SW-D, SA3156SW-D, SA3157SW-D, SA3158SW-D, SA3159SW-D, SA3160SW-D, SA3161SW-D, SA3162SW-D, SA3163SW-D, SA3164SW-D, SA3165SW-D, SA3166SW-D, SA3167SW-D, SA3168SW-D, SA3169SW-D, SA3170SW-D, SA3171SW-D, SA3172SW-D, SA3173SW-D, SA3174SW-D, SA3175SW-D, SA3176SW-D, SA3177SW-D, SA3178SW-D, SA3179SW-D, SA3180SW-D, SA3181SW-D, SA3182SW-D, SA3183SW-D, SA3184SW-D, SA3185SW-D, SA3186SW-D, SA3187SW-D, SA3188SW-D, SA3189SW-D, SA3190SW-D, SA3191SW-D, SA3192SW-D, SA3193SW-D, SA3194SW-D, SA3195SW-D, SA3196SW-D, SA3197SW-D, SA3198SW-D, SA3199SW-D, SA3200SW-D, SA3201SW-D, SA3202SW-D, SA3203SW-D, SA3204SW-D, SA3205SW-D, SA3206SW-D, SA3207SW-D, SA3208SW-D, SA3209SW-D, SA3210SW-D, SA3211SW-D, SA3212SW-D, SA3213SW-D, SA3214SW-D, SA3215SW-D, SA3216SW-D, SA3217SW-D, SA3218SW-D, SA3219SW-D, SA3220SW-D, SA3221SW-D, SA3222SW-D, SA3223SW-D, SA3224SW-D, SA3225SW-D, SA3226SW-D, SA3227SW-D, SA3228SW-D, SA3229SW-D, SA3230SW-D, SA3231SW-D, SA3232SW-D, SA3233SW-D, SA3234SW-D, SA3235SW-D, SA3236SW-D, SA3237SW-D, SA3238SW-D, SA3239SW-D, SA3240SW-D, SA3242SW-D, SA3243SW-D, SA3244SW-D, SA3245SW-D, SA3246SW-D, SA3247SW-D, SA3248SW-D, SA3249SW-D, SA3250SW-D, SA3251SW-D, SA3252SW-D, SA3253SW-D, SA3254SW-D, SA3255SW-D, SA3256SW-D, SA3257SW-D, SA3258SW-D, SA3259SW-D, SA3260SW-D, SA3261SW-D, SA3262SW-D, SA3263SW-D, SA3264SW-D, SA3265SW-D, SA3266SW-D, SA3267SW-D, SA3268SW-D, SA3269SW-D, SA3270SW-D, SA3271SW-D, SA3273SW-D, SA3274SW-D, SA3275SW-D, SA3276SW-D, SA3277SW-D, SA3278SW-D, SA3279SW-D, SA3280SW-D, SA3281SW-D, SA3282SW-D, SA3283SW-D, SA3284SW-D, SA3288SW-D, SA3289SW-D, SA3290SW-D, SA3291SW-D, SA3292SW-D, SA3293SW-D, SA3294SW-D, SA3295SW-D, SA3296SW-D, SA3297SW-D, SA3298SW-D, SA3299SW-D, SA3300SW-D, SA3301SW-D, SA3302SW-D, SA3303SW-D, SA3304SW-D, SA3305SW-D, SA3306SW-D, SA3307SWD, SA3307SW-D, SA3308SWD, SA3308SW-D, SA3309SW-D, SA3310SW-D, SA3311SW-D, SA3312SW-D, SA3313SW-D, SA3314SW-D, SA3315SW-D, SA3316SW-D, SA3317SW-D, SA3318SW-D, SA3319SW-D, SA3320SW-D, SA3321SW-D, SA3322SW, SA3323SW-D, SA3324SW-D, SA3325SWD, SA3325SW-D, SA3326SWD, SA3326SW-D, SA3327SW, SA3328SW, SA3329SW-D, SA3330SW-D, SA3331SW-D, SA3332SW-D, SA3333SW-D, SA3334SW-D, SA3335SW-D, SA3336SW-D, SA3337SW-D, SA3338SW-D, SA3339SW, SA3340SW-D, SA3341SW, SA3342SW, SA3343SW-D, SA3344SW, SA3345SW, SA3346SW, SA3348SW, SA3349SW, SA3350SW, SA3351SW-D, SA3352SW, SA3354SW-D, SA3355SW, SA3356SW, SA3357SW-D, SA3358SW-D, SA3359SW, SA3360SW-D, SA3361SW, SA3362SW-D, SA3363SW, SA3364SW, SA3366SW-D, SA3367SW-D, SA3368SW-D, SA3369SW-D, SA3371SW-D, SA3372SW-D, SA3374SW-D, SA3375SW-D, SA3376SW-D, SA3377SW-D, SA3378SW-D, SA3379SW-D, SA3380SW-D, SA3381SW-D, SA3382SWD, SA3382SW-D, SA3383SWD, SA3383SW-D, SA3384SW-D, SA3385SW-D, SA3386SW-D, SA3387SW-D, SA3388SW-D, SA3389SW-D, SA3390SW-D, SA3391SW-D, SA3392SW-D, SA3393SW-D, SA3394SW-D, SA3395SW-D, SA3396SW-D, SA3397SW-D, SA3398SW-D, SA3399SW-D, SA3400SW-D, SA3401SW-D, SA3402SW-D, SA3403SW-D, SA3404SW-D, SA3405SW-D, SA3406SW-D, SA3407SW-D, SA3408SW-D, SA3409SW-D, SA3410SW-D, SA3411SW-D, SA3412SW-D, SA3413SW-D, SA3415SW-D, SA3416SW-D, SA3417SW-D, SA3418SW-D, SA3419SW-D, SA3420SW-D, SA3422SW-D, SA3423SW-D, SA3424SW-D, SA3425SW-D, SA3426SW-D, SA3427SW-D, SA3428SW-D, SA3429SW-D, SA3431SW-D, SA3432SW-D, SA3433SW-D, SA3434SW-D, SA3435SW-D, SA3436SW-D, ( printed page 13397) SA3437SW-D, SA3438SW-D, SA3439SW-D, SA3440SW-D, SA3442SW-D, SA3443SW-D, SA3444SW-D, SA3445SWD, SA3445SW-D, SA3446SW-D, SA3447SW-D, SA3448SW-D, SA3449SW-D, SA3450SW-D, SA3451SW-D, SA3452SW-D, SA3453SW-D, SA3454SW-D, SA3455SW-D, SA3456SW-D, SA3457SW-D, SA3458SW-D, SA3459SW-D, SA3460SW-D, SA3461SW-D, SA3462SW-D, SA3463SW-D, SA3466SW-D, SA3467SW-D, SA3468SW-D, SA3469SW-D, SA3470SW-D, SA3471SW-D, SA3472SW-D, SA3473SW-D, SA3474SW-D, SA3475SW-D, SA3476SW-D, SA3477SW-D, SA3478SW-D, SA3479SW-D, SA3480SW-D, SA3481SW-D, SA3482SW-D, SA3484SW-D, SA3485SW-D, SA3486SW-D, SA3487SW-D, SA3488SW-D, SA3489SW-D, SA3490SW-D, SA3491SW-D, SA3492SW-D, SA3494SW-D, SA3495SW-D, SA3496SW-D, SA3497SW-D, SA3896SW, SA4383SW-D, SA530SW, SA532SW, SA533SW, SA538SW, SA539SW, SA540SO, SA566SW, SA576SW, SA581SW, SA596SW, SA603SW, SA607SW, SA617SW, SA621SW, SA624SW, SA637SW, SA638SW, SA645SW, SA651SW, SA658SW, SA662SW, SA667SW, SA668SW, SA669SW, SA675SW, SA676SW, SA680SW, SA681SW, SA693SW, SA701SW, SA705SW, SA709SW, SA727SW, SA732SW, SA737SW, SA7417SW, SA742SW, SA745SW, SA747SW, SA754SW, SA755SW, SA756SW, SA757SW, SA761SW, SA767SW, SA784SW, SA788SW, SA789SW, SA791SW, SA795SW, SA800SW, SA801SW, SA808SW, SA822SW, SA824SW, SA829SW, SA837SW, SA838SW, SA842SW, SA8488SW-D, SA8489SW-D, SA8490SW-D, SA8491SW-D, SA8494SW-D, SA8495SW-D, SA8496SW-D, SA8499SW-D, SA8501SW-D, SA8502SW-D, SA8503SW-D, SA8504SW-D, SA8505SW-D, SA8508SW-D, SA8509SW-D, SA850SW, SA8510SW-D, SA8512SW-D, SA8513SW-D, SA8514SW-D, SA8515SW-D, SA8516SW-D, SA8518SW-D, SA8519SW-D, SA8520SW-D, SA8521SW-D, SA8522SW-D, SA8523SW-D, SA8524SW-D, SA8526SW-D, SA8529SW-D, SA8530SW-D, SA8531SW-D, SA8532SW-D, SA8533SW-D, SA8534SW-D, SA8535SW-D, SA8538SW-D, SA8539SW-D, SA8541SW-D, SA8543SW-D, SA8544SW-D, SA8545SW-D, SA8546SW-D, SA8548SW-D, SA8558SW-D, SA860SW, SA862SW, SA869SW, SA882SW, SA896SW, SA921SW, SA925SW, SA929SW, SA939SW, SA961SW, SA962SW, SA968SW, SA981SW, and SH3458SW-D.

Descriptions of the STC design changes and affected aircraft models are available at https://drs.faa.gov/browse/STC/doctypeDetails.

The FAA has received a third-party request for the release of the aforementioned engineering data under the provisions of the Freedom of Information Act (FOIA), 5 U.S.C. 552. The FAA cannot release commercial or financial information under FOIA without the permission of the data owner. However, in accordance with title 49 of the United States Code § 44704(a)(5), the FAA can provide STC “engineering data” it possesses for STC maintenance or improvement, upon request, if the following conditions are met:

The FAA determines the STC has been inactive for 3 years or more;
Using due diligence, the FAA is unable to locate the owner of record or the owner of record's heir; and
The availability of such data will enhance aviation safety.

There has been no activity on this STC for more than 3 years.

On December 17, 2025, the FAA sent a registered letter to Century Flight Systems, Inc., to its last known address: 3003 FM 1195, Mineral Wells, TX 76067-0610. The letter informed Century Flight Systems, Inc., that the FAA had received a request for engineering data related to STC No. SA3496SW-D and SA3497SW-D and was conducting a due diligence search to determine whether these STCs and 763 other STCs were inactive and may be considered abandoned. The letter further requested that the company respond in writing within 60 days and state whether it is the holder of these 765 STCs. The FAA has also attempted to make contact with Century Flight Systems, Inc., by other means, including telephone communication and emails, but without success.

Information Requested

If you are the owner or heir or a transferee of all the 765 STCs or have any knowledge regarding who may now hold any of these STCs, please contact Aourolia Kristianti using a method described in this notice under FOR FURTHER INFORMATION CONTACT. If you are the heir of the owner, or the owner by transfer of any of these STCs, you must provide a notarized copy of your government-issued identification with a letter and background establishing your ownership of any of the STCs and, if applicable, your relationship as the heir to the deceased holder of the STCs.

Conclusion

If the FAA does not receive any response by September 15, 2026, the FAA will consider all 765 STCs as abandoned, and the FAA will proceed with the release of the requested data. This action is for the purpose of maintaining the airworthiness of an aircraft and enhancing aviation safety.

(Authority: 49 U.S.C. 44704(a)(5))

Issued on March 16, 2026.

Paul R. Bernado,

Acting Director, Compliance & Airworthiness Division, Aircraft Certification Service.

[FR Doc. 2026-05324 Filed 3-18-26; 8:45 am]

BILLING CODE 4910-13-P

Published Document: 2026-05324 (91 FR 13395)