( ^ Ronald J. Hinderberger 

Lead Administrator 

Delegated Compliance Org. 

Commercial Airplanes 

The Boeing Company 

P.O. Box 3707 MC 67-LR 

Seattle, WA 98124-2207 

JUN 0 7 2010 

BDCO-10-023 72 

U.S. Department of Transportation 

Docket Operations 

West Building Ground Floor, Room W12-140 

1200 New Jersey Avenue, SE 

Washington D.C. 20590 

Subject: 

Model: 

BDCO Project No.: 

EASA Project No.: 

EASA PTV Level: 

Response Requested: 

References: 

Petition of Exemption for Ensolite Padding on Business Class 

Side-Facing Seats with Inflatable Lap Belts Installed on Air New 

Zealand 777 Series Airplanes 

777-300ER 

Note: The use of Ensolite or similar padding on seat monuments 

is in principal applicable to all model Boeing airplanes. 

PS09-0885 

N/A 

N/A 

June 22, 2010 

(a) Boeing Letter BDCO-10-02186, "Revision A to Certification 

Initiation Package for the Certification of B/C Passenger 

Seats with Inflatable Restraints on 777-300ER Aircraft, 

Certification Plan No. 6212", dated May 21, 2010 

(b) Transport Airplane Cabin Interiors Crashworthiness 

Handbook AC 25-17A Paragraph 81b(5) 

(c) Boeing Letter B-7673-RA-11825, "Delethalization of 

Partitions and other Vertical Surfaces", dated 

November 28, 1978 

Special Instructions: Response requested to support Seats First Article Inspection and 

design finalization of Air New Zealand 777-300ER WE051 

Business Class Seats, scheduled for July 12-23, 2010. 

This letter replaces Boeing letter BDCO-10-02044. dated May 24. 

2010 and its Enclosures. 
^ 

Page 2 

U.S. Department of Transportation 

Docket Operations 

BDCO-10-02372 

Petition for Partial Exemption: 

The reference (a) project includes the installation and certification of Contour 'USC2' model 

side-facing business class passenger seats with Inflatable restraints. Although the similar seat 

model 'Fl 1800 Series' has been previously certified by the FAA via special conditions 

25-187A-SC and 25-295-SC, 'USC2' will be the first installation of this seat model on a Boeing 

777-300ER. The target airplane is scheduled to enter into service in November 2010. 

With this letter, Boeing petitions for exemption fi-om 14 CFR 25.853(d) Amdt. 25-83 and special 

conditions, 25-187A-SC, 25-295-SC, 25-358-SC, 25-367-SC, 25-368-SC, 25-369-SC, and 

25-370-SC, limited to the application of energy absorbing materials as directed by special 

condition 25-295-SC and Transport Airplane Cabin Interiors Crashworthiness Handbook AC 25-

17A Paragraph 81b(5), reference (b). Energy absorbing foams such as those listed in reference 

(b) and the enclosed reference (c), for the purpose of meefing 14 CFR 25.785(b),(d)(2),(k), are 

not capable of meeting the flammability requirements of 14 CFR 25.853(d) and the proposed 

exemption, if granted, would permit installation of energy absorbing material, such as one-inch 

of Ensolite (Type AH, AHC, IV3, HHC or HH), Klegecell or Airex 4070 on multiple Boeing 

airplane models. 

Boeing respectfully requests that this exemption be allowed rapid approval in accord with 

the provisions of 14 CFR Part 11.87(c)(d) to not publish a summary of the petition for 

exemption. Timely response to this petition will allow for adequate design Hnalization and 

First Article Inspection in mid July 2010, assuring appropriate compliance with Head 

Impact Criteria Requirements and on time aircraft delivery to Air New Zealand with the 

required seats installed. 

To substantiate our Petition, Boeing will be submitting proprietary information to the FAA under 

separate cover, and request the FAA to hold it in a separate file. 

This letter is sent for: 

(X) Regulatory Review/Approval 

Project Administrator Information 

(X) Project Administrator (PA): Hans Mostert at (425) 717-1175 

(X) Prospective Project Administrator (PPA): Mike Masters at (425) 544-6789 

Please contact the Project Administrator or Prospective Project Administrator if you have any 

questions. 
^ . 

Page 3 

U.S. Department of Transportation 

Docket Operations 

BDCO-10-02372 

The information being forwarded to the FAA by or with this correspondence is for the exclusive 

purpose of support of applications for or amendments to Type Certificates, is considered 

proprietary to The Boeing Company and/or its suppliers, and is provided on a confidential basis. 

Very truly yours. 

irdan B Zundell 

Lead Project Administrator - Production & Retrofit Projects 

(425) 965-3531, MC 67-LR 

FAX: (425)294-9340 

Enclosure: 

Boeing Letter B-7673-RA-11825, "Delethalizafion of Partitions and other Vertical Surfaces", 

dated November 28, 1978, reference (c) 

cc: 

Name 

K. Patel 

S. McCormick 

J. Shelden 

STD FAA CP Dist 

Enclosures 

No 

Yes 

Yes 

Yes 

EDT 

No 

Yes 

No 

Yes 

Comments 

(FAA) 6Y-01 

(FAA) 6Y-01 

(FAA) TSS-TAD 

(FAA) 6Y-01 
cc: 

H.J. Eadgcr , 

J.A. Tcnivit / / 

R.G. wi^Ur'\^/ 

G.B. K>U-i^<r<s 

C. Orfjcik 

GI:bp 

^ 

NOV 2 S 1978 . . .;• 

B-7G73-RA.-V!S25 " 

Subject: 

'!r. CC . Schroeder, Chi&f, A-'ir'-ZlO 

"nginc'iin'ng ?i !',anin'acturfng Drinch 

Ctlethalizalion of Parti Lions a 

ott-.yr V'^rtical S'jrfucc-snd 

S^Tlncises or less y* 

T / '2-'~rr- r- rr-r: n s 0 'i 

1 inc h Ensollt Q 

Dur e?rly consideration and concurrence will be appreciated. 

"^f-ry truly yo\:rt, 

T H E BOein G CC?'PA:iY 

fi;'c:'^c^^-;.i;j^