Industry priorities for the next tso c127 revision
This presentation is the property of its rightful owner.
Sponsored Links
1 / 15

Industry Priorities for the Next TSO-C127 Revision PowerPoint PPT Presentation


  • 173 Views
  • Uploaded on
  • Presentation posted in: General

Industry Priorities for the Next TSO-C127 Revision. September 9, 2011 Industry & FAA Workshop TA Wilson Event Center Seattle, Washington. TSO-C127 Industry TSO-C127(b) Strategy Timeline. Industry meeting in Washington DC. April 8, 2011. May 23, 2011.

Download Presentation

Industry Priorities for the Next TSO-C127 Revision

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Industry priorities for the next tso c127 revision

Industry Priorities for the Next TSO-C127 Revision

September 9, 2011

Industry & FAA Workshop

TA Wilson Event Center

Seattle, Washington

Seats Technical Center [email protected]


Tso c127 industry tso c127 b strategy timeline

TSO-C127 Industry TSO-C127(b) Strategy Timeline

Industry meeting in Washington DC

April 8, 2011

May 23, 2011

FAA Matrix shared with Industry at SAE meeting Letter

FAA David Hempe Letter

May 27, 2011

Industry Response Letter

June 7, 2011

Discussion with FAA in Washington DC

Aug 28, 2011

Sep 9, 2011

Industry/FAA meeting in Seattle

Seats Technical Center [email protected]


Issues previously discussed between industry faa

Issues Previously Discussed between Industry & FAA

  • Priority 1 - Seat Heat Release Special Conditions

  • Priority 2 - Delethalization of Features

  • Priority 3 - Delethalization of Features from the Occupant's

    Own Seat

  • Priority 4 - Wire Routing and Flammability Approval for Items in

    TSO Type Design

  • Priority 5 - Life Preserver Stowage Requirements

  • Priority 6 - Compliance of Under Seat Baggage Restraint

Shared with the FAA on April 8, 2011

Seats Technical Center [email protected]


Priority 1 seat heat release special conditions

Priority 1 - Seat Heat Release Special Conditions

Evaluation of the seat for HRSC is independent of the aircraft interior

Compliance activity should be re-usable for each installer – the TSO facilitates this

Important that the TSO support

Collection of valid data

Determination that the HRSC are met for that seat design (similar to 25.853(a) and (c)

Installation limitations address any issues that are beyond the TSO

Question – does a guidance document need to be in place for the TSO to reference?

Industry standardization activity in 2010 can serve as minimum performance standard (MPS) criteria

Shared with the FAA on April 8, 2011

Seats Technical Center [email protected]


Priority 1 seat heat release special conditions1

Priority 1 - Seat Heat Release Special Conditions

Shared with the FAA & Industry on September 9, 2011

Seats Technical Center [email protected]


Priority 2 delethalization of features

Priority 2 - Delethalization of Features

Occupant Strikes to a Monument

Guidance exists for delethalization of the seat back facing an occupant within the head strike zone (AC 25-17A)

FAA policy PS-AIR100-2003-ARP5526 provides seat manufacturers and installers with guidance for making determinations of compliance to the TSO MPS as well as Part 25. (AS8049, as well as 14 CFR 25.785 and 25.601)

Utilization of current guidance FAA Policy Memo ANM-03-115-31 standardizes the delethalization analysis for components within the striking radius of an occupant’s head.

Incorporation of inflatable systems special conditions into TSO-C127b would allow installers to utilizes TSO collected data without redundant review.

Shared with the FAA on April 8, 2011

Seats Technical Center [email protected]


Priority 2 delethalization of features1

Priority 2 - Delethalization of Features

  • FAA intends to include delethalization requirements of SAE ARP 5526A in the next revision to TSO-C127

  • FAA will evaluate use of FAA policy memo ANM-03-115-31 as called out in ARP-5526B

    • Coordination/consensus between Transport, Rotorcraft, and Small Airplane Directorates may be required

  • Industry appreciates FAA intent to address this in the FY012 TSO revision

Summary of Correspondence Between FAA & Industry May 27 & June 7, 2011

Seats Technical Center [email protected]


Priority 3 delethalization of seat features continued

Priority 3 - Delethalization of Seat Features - continued

Delethalization of seat features from an occupant’s own Seat (14 CFR 25.785(b)(d)(k))

AC 25-17A guidance could be updated to include items on an occupant’s own seat and, if followed, TSOA would indicate that no further review is needed.

An acceptable means to evaluate compliance for features on an occupant’s own seat could be:

Features, including cocktail tables, that fall into the hatched area shown are acceptable.

Features encroaching into the headstrike zone less than or equal to 1.0”, as measured from the inside surface of the armrest, are acceptable for seat widths of 21” or greater, as measured between the inside surface of each armrest.

Features encroaching into the headstrike zone and not exceeding a height of 37” above the seat track are acceptable.

Features encroaching into the headstrike zone more than 3.0”, as measured from the inside surface of the armrest, are not covered by this MOC and compliance must be shown by other means.

Shared with the FAA on April 8, 2011

Seats Technical Center [email protected]


Priority 3 delethalization of features from the occupant s own seat

Priority 3 - Delethalization of Features from the Occupant's Own Seat

  • Industry requests the TSO recognize that an inspection for sharp edges and corners provides adequate substantiation for delethalization of items on an occupant’s own seat

  • Industry notes this level of evaluation has traditionally been used for TSO and installation evaluations across industry for years.

  • Industry recognizes that potential future designs may be so unique that further substantiation may be required prior to installation. TSO applications for such designs should note that further evaluation is required.

  • Industry requests this be addressed in the FY012 TSO revision

  • The FAA will request the SAE Seat Committee develop a standard for evaluating seat delethalization including non-traditional seat designs.

Summary of Correspondence Between FAA & Industry May 27 & June 7, 2011

Seats Technical Center [email protected]


Priority 4 wire routing and flammability approval for electrical items in tso type design

Priority 4 - Wire Routing and Flammability Approval for Electrical Items in TSO Type Design

TSO should cover Wire Routing and Wire Flammability for electrical components integrated for which design and quality is clearly controlled by the TSO manufacturer

Minimum Performance Standards (MPS) criteria can be covered by:

ARINC 628 Part 5 provides guidelines for Part Selection, Wire Design, Wire and Equipment Installation, Documentation

SAE AS8049A and ARP5526 - Provide further design guidelines

Shared with the FAA on April 8, 2011

Seats Technical Center [email protected]


Priority 4 wire routing and flammability approval for items in tso type design

Priority 4 - Wire Routing and Flammability Approval for Items in TSO Type Design

  • Wire Routing Electrical Items

    • Standards exist for wire routing requirements.

    • FAA coordination with the Directorates is needed to determine if these requirements can be easily and appropriately integrated into the FY012 TSO-C127 revision or will require more time and must wait for a future revision.

  • Wire Insulation Flammability

    • Wire flammability requirements are well known and will be included in the next revision of TSO-C127 for the appropriate seat types.

  • Industry supports the inclusion of both wire routing and wire flammability under the TSO in FY 2012

Summary of Correspondence Between FAA & Industry May 27 & June 7, 2011

Seats Technical Center [email protected]


Priority 5 life preserver stowage requirements

Priority 5 - Life Preserver Stowage Requirements

Life Preserver design and certification is completely contained within the seat design.

Life preservers or their storage locations must be designed so that tampering is evident. 14 CFR 25.795(c)(3)(iii); AC 25.795-8

Each life preserver must be within easy reach of each seated occupant14 CFR 25.1411(f)

Although life vest retrievability is already a part of the TSO MPS, installers often have difficulty with the practical usefulness of that approval when certifying airplane interiors.

FAA CAMI DOT/FAA/AM-03/9 Report and guidelines need to be recognized and utilized into compliance findings.

SAE ARP 5526(B) contains sufficient guidance that installers could use the TSO approval along with a well written Installation Instructions and Limitations (IIL) document, without any further substantiation for installation.

AC 25.795-8 contains sufficient guidance to serve as a TSO MPS. Seats with TSO approval would not require any further substantiation for ensuring tamper evident design.

Shared with the FAA on April 8, 2011

Seats Technical Center [email protected]


Priority 5 life preserver stowage requirements1

Priority 5 - Life Preserver Stowage Requirements

  • Life Preserver Retrievability

    • FAA intends to evaluate whether to use a modified version of ARP 5526a or utilize the requirement in ARP 5526b.

    • FAA intends to address this issue in the FY012 TSO revision.

  • Life Preserver Tamper Evidence

    • There is currently no industry standard for this requirement.

      • AC 25.795-B highlights one acceptable method for transport category airplanes. The FAA will request that the SAE Seat Committee develop an industry standard document for life preserver tamper evidence.

      • Coordination across the FAA Directorates would be required prior to potential incorporation of the resultant standard into the TSO.

      • For these reasons, integration of life preserver tamper evidence requirements into the next revision of TSO-C127 is not likely but will be considered for a future revision.

Summary of Correspondence Between FAA & Industry May 27 & June 7, 2011

Seats Technical Center [email protected]


Priority 6 compliance of under seat baggage restraint

Priority 6 - Compliance of Under-seat Baggage Restraint

The FAA has issued Policy that allows the TSO holders to use ARP5526 guidance to meet TSO MPS. (PS-AIR100-2003-ARP5526)

We recommend that the FAA adopts the latest revision of the ARP5526 (Rev. B or C) for the new revision of TSO-C127

By doing this, the installer would be able to use the TSO to show compliance to 25.787 for the baggage restraints as installed in the airplane.

Shared with the FAA on April 8, 2011

Seats Technical Center [email protected]


Priority 6 compliance of under seat baggage restraint1

Priority 6 - Compliance of Under Seat Baggage Restraint

  • At this time, the draft revision of TSO-C127 partially uses section 3.7 of ARP 5526A as an optional requirement for the step load.

  • In addition, the draft revision allows for the use of weights to simulate under-seat baggage loads during dynamic tests. The FAA intends to evaluate the use of section 3.7 of ARP 5526B as a requirement in the next draft of TSO-C127.

  • Industry supports inclusion of these actions in the FY012 TSO revision.

Summary of Correspondence Between FAA & Industry May 27 & June 7, 2011

Seats Technical Center [email protected]


  • Login