# STC SH1418NM - Type: Supplemental type certificate - Status: Current, Issued - Holder: Sorm Inc, United States - Description: Modify Type Design by the Installation of Bulk Liquid Cargo Tank Assembly installed. - Applied: October 1, 1981 - Status date: October 29, 1981 - Product: Aircraft, Rotorcraft - Certification basis: Part 21 - Data sheets: [TCDS H4SW](https://openairdocs.org/tcds/H4SW) - Certificate PDF: https://openairdocs.org/files/sha256/03/0b/030bc7e00e9c5c4f518bf2108acb2f380de0323386d3e256cd210ca34845b10e - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8BBDDA9598D3320686257ACB0074DAC5.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SH1418NM ## ADs that name it (0) None. ## Approved models (1) - Bell Helicopter Textron 212 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SH1418NM This certificate issued to: Sorm, INC. 7999 Perimeter Road South Seattle, Washington 98108 Pust 29 of the Federal Aviation Regulations: (See T. C. Data Sheet H4SW) Original Product - Type bertificate Number: HASW Make: Bell Model: 212 List SI-19000. go tank late Accordancest so ustrals A eated rain Type of Liquids to be Carried Were Not Considered in the Evaluation to the Bell 212 helicopter only. Limilaluns and bindilions: The approval of this change in type design applies basically This approval should not be extended to helicopters of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any other previously approved modifications will introduce no adverse effect upon the airworthiness of that The helicopter shall be loaded and the system operated in accordance with Sorm, inc., SI-1900, Pages 37-39 Revision B, or a later FAA approved Revision. (cont.) rendered, suspended, revoked, or a lermination dale is otherwise established by the Administrater of the Federal Aviation Administration . Date of Application: October 1, 1981 Sute missued: Date of Issuance: October 29, 1981 Sale unended: FEDERAL AVIATION By Direction of the Administrator ยป (Signature ) OMINISTRANO Chief, Seattle Area Aircraft 47 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SH2418MM Do not exceed helicopter's weight and balance limits. A copy of this Certificate and Addendum No. SH1418NM shall be maintained as part of the permanent records for the helicopter. The conditions and limitations of Type Certificate Data Sheet No. H4SW apply except as follows: This STC Addendum, which is part of Supplemental Type Certificate No. SH1418NM prescribes conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Federal Aviation Regulations. A copy of this SIC Addendum is required to be maintained as part of the modified helicopter's permanent records. Supplemental Type Certificate Holder: SORM, Inc. The following placards are required: 1. Placard on Forward Tank: NO SMOKING Empty Tank Weight = 250LB C.G. Station 107 Tank Maximum Capacity = 350 Gallons Maximum Payload = 2198 LB CG. Station 104.5 All Valves Closed During Flight Fill Hose Capped Do Not Exceed Maximum Approved Takeoff Weight 2. Placard on Aft Tanks NO SMOKING Empty Tank Weight = 80 LB Tank Maximum Capacity = 87 Gallons C. G. Station 148 Maximum Payload = 583 LB - END - **FAA FORM 8110-2-1 (10-69) PAGE 30F 3 PAGES C FAA AC 73-2651** ## Every issue (1) - October 29, 1981: Issued, Current. [certificate](https://openairdocs.org/files/sha256/03/0b/030bc7e00e9c5c4f518bf2108acb2f380de0323386d3e256cd210ca34845b10e) --- 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.