# STC SA137EA - Type: Supplemental type certificate - Status: Current, Issued - Holder: The Boeing Company, United States - Description: Unifreight Mark V Model B cargo handling system. (Original approval issued to American Machine & Foundry Co.) - Applied: November 20, 1963 - Status date: August 19, 1964 - Product: Aircraft, Large Airplane - Data sheets: [TCDS 4A26](https://openairdocs.org/tcds/4A26) - Certificate PDF: https://openairdocs.org/files/sha256/90/ad/90ad14080b096c7d888c3e76348061c44b44bae54ace2e76bbed9320fd699e7b - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109206161520230821155830.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA137EA ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company 707-300C Series ([TCDS 4A26](https://openairdocs.org/tcds/4A26)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. **INSPECTO** SPOLENA YE RTTURNED TO APPLICAN UFO 10 NAME AND ADDRESS OF APPLICANT SUPI LEEN TA. TYFE CERTIFICATE APPLIED FOR: THE POSE COMPAN Renton, Vaalianton AIRCRAFT ENGINE PROPELLER Original Holder: American Nechine & Foundry ORIGINAL MODEL DESIGNATION Whiteford & Eder Hoade Booing 707-3730 York, Pennsylvania NEW MODEL DESIGNATION. (If desired) 3. DESCRIPTION OF CHANGE ' 1. Installation of Unifreight Nork V Nodel B cargo handling syston per AlF Dug. 300-60111, Sheets 1 & 2, Rev. 10/4/63; sheet 3, Rev, B 7/10/02 and Sheet 4, Rev. C 7/12/65. 2. Appropriate Loading Instructions consistent with the limitations contained on AN Deg. 300-60111, Sheets 1, 2 & 3 and Cargo Profiles contained on Sheet 4 and Boeing Document 05-4185 Rev. A 7/10/65 must be incorporated in the air carriers' approved Feight & Balance Control System and their inclusion accepted by the FAA Air Carrier Inspector. AF Operation, Service and Repair Manual Unifreight Mark V Model B Cargo landling System, Oct. 7, 1963, must be included in the air carriers' appropriate operating manuals and its inclusion sust be approved by the FAA Carrier Inspector (CONTINUED) 1. WILL DATA BE AVAILABLE FOR SALE OR RELEASE TO OTHER PERSONS? 0. WILL PARTS BE MANUFACTURED FOR SALE (Ref. CAR 1.55)? YES NO 5. SIGNATURE AND TITLE OF APPLICANT (BoL Carter› SIGNATURE Chief, Airworthiness Date of Application: TITLE 6. To be Completed by FAA Structural substantiation of the modifications described under Item sA, covered by AMP Report MK V-2 and ME-V-3 as evidenced by approved Forms FAA-1600 dated 7/12/03, 10/3/68 & 11/1/62 signed by Cordon silver, DEB 1-57. Satisfactory fabrication conformity inspection conducted by Inspector A, Santarolli as indicated on Conformity Inspoction Roport Forns FM-1237 dated 7/9/63 & 3/22/63. Satisfactory installation conformity inspection conducted by Inspector sing C. Chin, #2-3M00-16, as indicated on Form F44-1257 dated 7/7/63 and 7/8/63. Satisfactory compliance inspection indicated in WE-210 memo to EA-210 dated 7/19/63. ORIGINAL TYPE CERTIFICATE NO. FAA APPROVAL Supplemental Type Certificate NO. 4426 Rocco L. Lippis Original signca by Charies &e Hawks, SIGNATURE SA137EA ATE OF APPROVAL November 20, 1963 June 25, 1064 (amended) Chief, Aircraft Engineering Division, Western Region TITLE Issued to the AUG i Sigbeing Co. FAA AC 64-306 FORM FAA -2417 (5-59) On Item 3 - Description of Chang (concined OR: B. 1. Installation of Unifreight Mark V Model B cargo handling systen with 306-60114-2 or -3 Conversion Kite per ANE Dwg. 306-60114, Sheets 1 and 6, Rev. H, 11/11/63, Sheets 2, 3 & 4, Rev. 0, 11/4/63 and Sheet 5, 10/15/63. 2. The contents of AMF Pallet Lock Check List Form AMF ME V-1 of 11/15/63 and appropriate Loading Instructions consistent with the limitations contained on AF Deg. 306-60114, Sheets 1, 2 & 3 and Cargo Profiles contained on Sheet 4 & 6 and Boeing Document D6-4188 revised 11/26/63 or D6-4176 of 11/11/63 (latter only applicable to THA 707-373C airplanes, S/Ne 18709 & 18738) must be incorporated in the air carriers' approved Weight & Balance Control System and their inclusion accepted by the FAA Air Carrier Inspector. 3. AMF Operation, Service and Repaix Manual Unifreight Mark V Model B Cargo Handling System dated Oct, 7, 1963, changed Nov. 15, 1963, must be included in the air carriers' appropriate Operating Manuals and its inclusion must be approved by the FAA Air Carrier Inspector. OR: C. 1. Installation of Unifreight Mark V Model B cargo handling system per Al Degs, 306-60114 Sheet 1, 5, 6 and 7 Rev. K of 6/1/64 and Sheets 2, 3 and 4 Rev. 0 of 11/4/63. 2. The contents of AMF Pallet Lock Check List Form AMF MK V-1 of 11/15/63 and appropriate Loading Instructions consistent with the limitations contained on AMF Degs. 306-60114 Sheets 1, 2 and 3 and Cargo Profiles contained on Sheet 4, 6 and 7 and Boeing Document D6-4183 Rev. 7 of 5/2/64 or D6-4176 Rev. A of 12/3/63 (latter only applicable to TWA 707-378C airplane S/Ns 18709 and 18788) must be incorporated in the air carriers' approved Weight & Balance System and their inclusion accepted by the FAA Air Carrier Inspector. 3. AMF Operation, Service and Repair Manual Unifreight Mark V Model B Cargo Handling System dated Oct. 7, 1963, Changed May 22, 1964 must be included in the air carriers' appropriate Operating Manuals and its inclusion must be approved by the FAA Air Carrier Inspector. APPLICABILITY AND LIMITATIONS: 1. MII-P-274438 (NCU/6E) pallets, MII-N-27414A (HCU-7/E) nets and MII-T-8652 (MC-1) straps are acceptable for use on civil aircraft operating under a military contract and components remain the property of U. S. Air Force. Configuration "c", carriage of passengers aft of pallets not permitted since compliance with pertinent requirements has not been shown, ITEM 6 - Nature and Location of ista (Continued) Structural substantiation of modification described under Item 3 E. covered by AMP Report NK V-5 dated 11/17/63 plus ME V-2 App. A, 10/17/63, as evidenced by approved Form FAA-1600 dated 11/19/63. Satisfactory fabrication conformity inspection conducted by Inspector W. I, Weymouth as indicated on Conformity Inspection Report Forms F&A-1257 of 9/24/63 & 10/16/63. Satisfactory installation conformity/compliance inspection conducted by Inspector Wing. C. Chin, WE-EMDO-46, as evidenced by Form FAA-1257 dated 11/14/63 & WE-212 meno of 11/29/63. Structural substantiation of modification described under Item 3. C. covered by AMP Report MK V-5 Rev. A, NK V-5 Rev. B, AMF Test Reports MK V-004, MK V-006, MK V-007 & NK V-1 Appendix B Rev. B as evidenced by approved Forms FAA-1600 dated 4/10/63, 4/13/63, 5/22/64 and 6/4/64. Satisfactory fabrication and installation conformity inspection conducted by Inspector Wing C. Chin and indicated on Conformity Inspection Report Forms PAA-1257 of 5/27/64, 6/2/64 and 6/16/64, telegraphic messages of 6/12/64 from WE-400 and 6/25/64 from Vernon L. Gardner. Approval Basis: Pertinent requiremente of CAR 4b of December 1953, Amendments 4b-1, 4b-2 and 4b-3 thereto. Data located at the Boeing Company, Renton Washington, and the FAA, Aircraft Engineering Division, Western Region, 5651 W. Manchester Ave., Los Angeles, California. ## Every issue (1) - August 19, 1964: Issued, Current. [certificate](https://openairdocs.org/files/sha256/90/ad/90ad14080b096c7d888c3e76348061c44b44bae54ace2e76bbed9320fd699e7b) --- 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.