STC ST11075SC

FAA Form 8110-2 (5/14) Page 1 of

Part of the

Signature

Title ST11075SC AVOX Systems, Inc.

225 Erie Street Lancaster, NY 14086 Federal Aviation Regulations.

1. Installation of the AVOX LavOx Passenger Lavatory Oxygen System in accordance with the Installation Data List, Document No. 89553, Revision A, dated August 24, 2015.

2. Maintenance to be performed in accordance with AVOX Systems, Instructions for Continued Airworthiness, Document No.

89555, Revision B, dated July 24, 2015, FAA accepted September 2, 2015. A revised EWIS ICA is not required for this STC.

1. The installer must determine whether this design change is compatible with previously approved modifications.

2. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

3. ELOS Findings have been made for the following regulations: 14 CFR 25.1441(c) Oxygen equipment and supply, and 14 CFR

25.1443(c) Minimum mass flow of supplement oxygen (documented in TAD ELOS Memo ST07720NY-T-S-1).

Gaetano Sciortino Manager New York Aircraft Certification Office Boeing 757-200 Series 757-300 Series April 17, 2014 April 6, 2015, September 28, 2015 September 24, 2014 December 19, 2014 A2NM 3

FAA Form 8110-2 (5/14) Page 2 of

To (Name and address of transferee)

From (Name and address of grantor)

3 ST11075SC

FAA Form 8110-2 (5/14) Page 3 of

3 Date Amended: September 28, 2015

Certification Basis:

Based on 14 CFR 21.115 and 21.101, and the FAA policy for no-significant changes in FAA Order 8110.48, the certification basis for the Boeing Model 757-200 and 75-300 Series aircraft for the change is as follows:

a. The Type Certification basis for Boeing 757-200 & 757-300 Series airplanes as shown on TCDS A2NM for parts not changed or not affected by the change.

b. The certification basis for parts changed or affected by the change since the reference date of application, September 24, 2014 is based upon Part 25, as amended by Amendment 25-138 and Part 26 as amended by Amendment 26-6. Based on 14 CFR 21.115 and 21.101, and the FAA policy for non-significant changes in FAA Order 8110-48, the certification basis for this modification was determined to be:

Regulations at the latest amendment 25-0 through 25-138:

25.301(a), 25.303, 25.601, 25.1438(b), 25.1441(b)(c), 25.1443(c), 25.1445(a), 25.1449, 25.1453, 25.1529

Regulations at the amendment level in TCDS A2NM:

25.21(a.1), 25.29, 25.305(a)(b), 25.307(a), 25.561, 25.603, 25.605, 25.607, 25.611, 25.613(a)(b)(c), 25.789, 25.1301,

25.1309(a)(b)(d), 25.1447(a)(c.1)(c.3)

14 CFR Part 26 regulations:

Based 14 CFR 21.101(g), applicable provisions of 14 CFR Part 26 are included in the certification basis. For any future 14 CFR Part 26 amendments, the holder of this STC must demonstrate compliance with the applicable sections. As of the issuance of this STC, compliance has been found for the following regulations 14 CFR 26.11(c)(d)

(5) (Amendment No. 26-0 through 26.6)

ELOS Findings have been made for the following regulations: 14 CFR 25.1441(c) Oxygen equipment and supply, and 14 CFR 25.1443(c) Minimum mass flow of supplement oxygen (documented in TAD ELOS Memo ST07720NY- T-S-1).

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