This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Qualification of Low-Density Materials for Aircraft Corrosion Protection and Integral Fuel Tank Sealing
Annotation ability available
Sector:
Language:
English
Abstract
Low-density polysulfide-based sealants are at the leading edge of engineering technology for sealing processes applicable to military and commercial aircraft. This paper focuses on a major aircraft manufacturer's quality assurance (QA) system dedicated to testing and evaluating sealants for placement on applicable Qualified Products Lists (QPLs); This QA system enabled this aircraft manufacturer to qualify two Class C designations -- Classes C-2 and C-48 -- of low-density sealants. The generic procedure for qualification of low-density sealants, especially Class C materials, is explained from the aircraft manufacturer's point of view. The Engineering decisionmaking process for selecting and documenting property test requirements for qualification of aircraft sealants is discussed. Despite the time-intensive nature of the generic sealant qualification process, the author concludes that sealant qualification is a worthwhile and necessary effort, which demands comprehensive testing and frequent technical coordination within airframe manufacturer's Engineering and Materiel organizations and with suppliers of aircraft sealing products.
Recommended Content
Authors
Citation
Bauccio, M., "Qualification of Low-Density Materials for Aircraft Corrosion Protection and Integral Fuel Tank Sealing," SAE Technical Paper 972241, 1997, https://doi.org/10.4271/972241.Also In
References
- AMS 3281, Sealing Compound, Polysulfide (T) Synthetic Rubber, for Integral Fuel Tank and Fuel Cell Cavities, Low Density (1.35 sp gr max), for Intermittent Use to 360 °F (182 °C)
- BMS5-26, Integral Fuel Tank Sealant The Boeing Company Seattle, WA
- BMS5-44, Temperature-Resistant Fuel, Pressure, and Weather Sealant The Boeing Company Seattle, WA
- MIL-S-8802, Sealing Compound, Temperature-Resistant, Integral Fuel Tanks and Fuel Cell Cavities, High Adhesion (includes Amendment 4, dated 20 January 1995)
- Summary Report (SR) 8655 “PR-1776 Qualification to BMS5-45,” Boeing Commercial Airplane Group (BCAG), The Boeing Company Seattle, WA
- Operations Technology Development Report (OTDR) No. 6-94341 The Boeing Company Seattle, WA
- Stanek, S. L. D6-5997, Rev. V: Procedures for Writing and Revising Boeing Material Specifications (in coordination) 17 October 1996 The Boeing Company Seattle, WA
- BMS5-45, Low Density Integral Fuel Tank Sealant The Boeing Company Seattle, WA
- QPL for AMS 3276, Sealing Compound, Integral Fuel Tanks and General Purpose, Intermittent Use to 360 °F (182 °C)
- MIL-S-83430, Sealing Compound, Integral Fuel Tanks and Fuel Cell Cavities, Intermittent Use to 360 °F (182 °C)
- 5 October 1994
- Albu, Michael L. ISO 9000 and the Analytical Laboratory American Laboratory 28 14 52 55 1996
- Buda, J. Why Bolts Fail Machine Design 66 22 85 90 1994
- Standardization Control Board (SCB) Transmittal Sheet, SCB No. 66-485, BMS5-45 Rev./QPL 18 November 1996