1. Industry Priorities for the Next TSO-C127 Revision
September 9, 2011
Industry & FAA Workshop
TA Wilson Event Center
Seattle, Washington
Seats Technical Center

2. TSO-C127 Industry TSO-C127(b) Strategy Timeline
Industry meeting in Washington DC
April 8, 2011
FAA Matrix shared with Industry at SAE meeting Letter
May 23, 2011
FAA David Hempe Letter
May 27, 2011
Industry Response Letter
June 7, 2011
Discussion with FAA in Washington DC
Aug 28, 2011
Industry/FAA meeting in Seattle
Sep 9, 2011
Seats Technical Center

3. 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

4. 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 (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

5. Priority 1 - Seat Heat Release Special Conditions
Shared with the FAA & Industry on September 9, 2011
Seats Technical Center

6. 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-AIR 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 and )
Utilization of current guidance FAA Policy Memo ANM 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

7. 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 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

8. Priority 3 - Delethalization of Seat Features - continued
Delethalization of seat features from an occupant’s own Seat (14 CFR (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

9. 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

10. 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 ARP Provide further design guidelines
Shared with the FAA on April 8, 2011
Seats Technical Center

11. 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

12. 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 (c)(3)(iii); AC
Each life preserver must be within easy reach of each seated occupant 14 CFR (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 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

13. 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 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

14. 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-AIR 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 for the baggage restraints as installed in the airplane.
Shared with the FAA on April 8, 2011
Seats Technical Center

15. 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

16. Next Steps Near Term TSO C127 Update
Agreement on essential content within the TSO (industry is willing to provide proposed draft TSO – similar to TSO C39c)
Issue for Public comment
FAA to support industry meeting to review/agree on TSO content
Industry submit comments to document industry meeting content
After comment period, final TSO document published by end of FY11
Update TSO C39 to include the applicable items (TSO C127 minus dynamic testing)
Future TSO C127 Content:
Business and First Class Seating is more commonly being installed at angles between degrees from the aircraft centerline
Allow the usage of side facing policy when addressing “oblique” seats (seats less than 90° but more than 18° from the centerline of A/C) – this would allow these seats to have TSO and simplify and standardize the interior compliance finding for Installers.
Shared with the FAA & Industry on September 9, 2011
CKD , Ditch and Pot Status ppt |
Seats Technical Center