# May**12> 2011** **-4- EMBRAER** **GCF-0563/2011 tMHMMtM** **AACB Embraer** **S.A. Av.** **Bhgadeiro Faria** **Lima, 2.170** **12227-901 J.** **dos Campos** **SP Brasil** **Fone: (12)** **3927-6481 Fax:** **(12) 3927-1184** **PC: 179** **US Department** **of Transportation** **1200 New** **Jersey Avenue,** **SE West** **Building Ground** **Floor Room** **W12-140 Washington,** **DC 20590** **Subject: EMB-550** **FAA Type** **Validation Petition** **to the** **Exemption from 14** **CFR 25.813** **(e) Amdt.** **25-116 Please** **find enclosed** **Embraer Petition** **to the** **Exemption from** **14 CFR** **25.813 (e)** **Amdt. 25-116,** **in order** **to allow** **the certification** **of the** **installation of** **interior doors** **between passenger** **compartments and** **emergency exit** **in the** **EMB-550 Type** **Design.**

### This**Embraer letter** **completes previous** **letter GCF-0325/2011** **and provides** **additional information** **according to** **FAA letter** **dated on** **April 12,** **2011. Sincerely,** 

### Viana**de Caruplho** **^Rafael Gustavo** **Fasana Marques** 

## Manager**Certification Office** **C.c: ANAC** **Willian Yoshinori** **Tanji (PCM** **EMB-550)**

# EMBRAER**14 CFR** **11.81 (a)** **Contact Information:** **Sergio Augusto** **Viana de** **Carvalho Embraer** **Airworthiness Manager** **Av. Brigadeiro** **Faria Lima,** **2170 PC** **179 12227-901** **Sao Jose** **dos Campos,** **SP Brazil** **Phone: 55-12-3927-3543** **Fax: 55-12-3927-1184** **14 CFR** **11.81 (b)** **Specific Section** **from Which** **Exemption is** **required 14** **CFR 25.813** **Emergency exit** **access. (e)** **No door** **may be** **installed between any passenger** **seat that** **is occupiable** **for takeoff** **and landing** **and any** **passenger emergency** **exit, such** **that the** **door crosses** **any egress** **path (including** **aisles, crossaisles** **and passageways).** **14 CFR** **11.81 (c)** **Extent of** **Relief and** **Reason for** **Seeking Relief** **Petition and** **General Information** **The EMB-550** **airplane will** **comply with** **the 14** **CFR 25** **requirements in** **amendment 127,** **transport category** **airplanes. The** **regulations on** **the aircraft** **category transport** **do not** **make any** **distinction between** **commercial aircraft,** **used for** **the public** **paying and** **aircraft especially** **used for** **other operations,** **as the** **"charter" or** **private. Therefore,** **the only** **mean available** **for accepting** **this installation** **for private** **use airplanes** **would be** **through an** **exemption from** **the prohibition** **of interior** **doors between** **passenger compartments** **14 CFR** **25.813 (e)** **as above** **mentioned. Embraer** **intends to,** **if this** **exemption is** **granted, provide** **certain privacy** **options that** **have became** **standard for** **business jets.** **EMBRAER believes** **that aircraft** **specially designed** **for the** **private use** **shall be** **eligible for** **the acceptance** **of exemptions** **of cabin** **characteristics that** **do not** **comply with** **certain parts** **of 14** **CFR 25.** **In this** **case, similar** **level of safety** **can be** **demonstrated. Embraer** **also states** **that the** **following characteristics** **are unique** **to private** **use airplanes** **and provide** **compensating factors** **that are** **not normally** **provided in** **commercial use** **airplanes: The** **number of** **passengers in** **private use** **airplanes is** **smaller than** **that traditional** **airplanes commercial** **The passengers** **in private** **use airplanes** **are typically** **frequent fliers** **and familiar** **with the** **safety features** **of the** **specific airplane** **they are** **aboard; The** **interior arrangement** **is static,** **allowing flight** **and cabin** **crews to** **become acquainted** **with the** **configuration of** **the airplane,** **and emergency** **equipment provided,** **and the** **location of** **the emergency** **exits. They** **also have** **regular contact** **with the** **"repeated" passengers,** **which promotes** **positive influence** **on communicating** **safety issues;** 

# EMBRAER**Differently from** **an airline,** **the operator** **has control** **and may** **restrict the** **public and/or** **select the** **passengers of** **aircraft. 14** **CFR 11.81** **(d) Reason** **Why Granting** **Relief Would** **be In** **Public Interest** **Public Interest** **The design** **features listed** **below provide** **adequate passenger** **ability to** **egress in** **an**

### emergency,**the granting** **of this** **petition will** **allow Embraer** **to provide** **the type** **interior layouts** **expected in** **this class** **of airplane** **while simultaneously** **providing an** **adequate**

### level**of passenger** **protection. Allowing** **the installation** **of passenger** **compartment doors** **while maintaining** **an adequate** **level of** **passenger protection** **is in** **the public** **interest. Embraer** **S.A. designs,** **develops, manufactures,** **markets and** **services the** **world's most** **technologically advanced** **business jet** **aircraft to** **an international** **market. The** 

### corporation**utilizes numerous** **products, such** **as avionics** **and environmental** **control systems,** **from scores** **of suppliers** **located throughout** **the United** **States. Embraer** 

### competes**for new** **business all** **over the** **world. Although** **the current** **world economy** **has slowed** **in comparison** **to previous** **years, the** **corporate aircraft** **market is** **expected to** **grow. These** **interior doors** **will work** **as an** **acoustic barrier** **and will** **provide private** **area allowing** **passengers to** **perform for** **example business** **meetings or** **sleeping more** **comfortably.**

### Denial**of this** **petition would** **also negatively** **impact the** **ability of** **the EMB-550** **to compete** **with other** **airplanes in** **the executive** **market, that** **have passenger** 

### compartment**doors because** **their authority** **granted them** **similar exemption** **or is** **under an** **earlier certification** **basis, leading** **to loss** **of revenue** **for Embraer** **and its** **Brazilian suppliers** **having an** **adverse impact** **on the** **Brazilian economy,** **which would** **be against** **the public** **interest.**

### 14**CFR 11.81** **(e) Reasons** **Why Exemption** **would Not** **Adversely Affect** **Safety Justification:** 

### Embraer**believes that** **many customers** **who purchase** **and operate** **Embraer airplanes** **consider privacy** **to be** **an essential** **feature. Therefore,** **it is** **important that** **portions of** **the**

### cabin**may be** **configured as** **private areas** **to accommodate** **private meetings.** **The only** **plausible method** **of providing** **such privacy** **is through** **the use** **of doors** **that separate** **passenger compartments.** **When private** **area is** **created within** **the passenger** **cabin,**

### the**doors separating** **the private** **area from** **the rest** **of the** **cabin will** **be located** **between passenger** **compartments.**

### The**cabin of** **the EMB-550** **is approximately** **8.4 feet** **wide. It** **is necessary** **to divide** **the**

### cabin**full width** **laterally to** **produce private** **area because** **side corridor** **would not** **be practical.** 

### EMBRAER**The proposed** **doors will** **be installed** **across longitudinal** **aisle and** **translate laterally** **to open** **and close.** **The doors** **will not** **obstruct the** **openings when** **they are** **open complying** **with the** **aisle width** **requirements of** **14 CFR** **25.815 for** **the maximum** **possible passenger** **configuration. Embraer** **states that** **the doors** **will have** **the following** **additional safety** **features: 1.** **Each interior** **door will** **be frangible,** **so that** **in the** **event that** **it is** **jammed in** **the**

### deployed**position, it** **will allow** **5th percentile** **female to** **break the** **doors open** **in**

### case**of an** **emergency, creating** **large enough** **opening that** **95th percentile** **male can** **pass through.** **2. Each** **interior door** **will also** **be equipped** **with dual** **locking mechanism** **to hold** **the door** **in the** **open position** **in such** **the probability** **of door** **unlocking due** **to distortion** **of the** **fuselage in** **an emergency** **landing will** **be minimized.** **Each locking** **will be** **able to** **withstand the** **loads imposed** **upon it** **when the** **door is** **subjected to** **the ultimate** **inertia forces** **specified in** **14 CFR** **25.561. 3.** **When the** **doors are** **deployed (i.e.,** **spanning across** **the aisle),** **there will** **not be** **latching mechanism** **that keeps** **the doors** **in that** **position, obstructing** **the aisle.** **This will** **allow occupants** **to access** **the opposite** **side of** **the door** **without the** **use of** **any tools.** **4. An** **advisory CAS** **message "Door** **Pocket Not** **Open" will** **be provided** **for crew** **when an** **interior door** **is not** **open and** **locked for** **take off** **and landing.** **The doors** **will be** **placarded to** **be locked** **open during** **taxi, take-off** **and landing.** **5. Emergency** **exit locator,** **marking signs** **and emergency** **lighting in** **accordance with** **14 CFR** **25.811 and** **25.812 will** **be provided.** **6. The** **Airplane Flight** **Manual (AFM)** **will provide** **procedures and** **limitations to** **ensure that** **the doors** **are in** **the proper** **position for** **taxi, takeoff** **and landing.** **Embraer believes** **that the** **basic issues** **of passenger** **finding and** **reaching an** **exit in** **an emergency** **are addressed** **by the** **above additional** **safety features** **and by** **the existing** **safety parameters** **inherent in** **the operation of** **private use** **airplanes. Embraer** **also believes** **that even** **if some** **extreme condition** **should result** **in door** **being closed** **or partially** **closed after** **an accident,** **there are** **simple means** **to get** **through the** **door to** **reach the** **exit(s). For** **this reason,** **the exemption,** **as requested,** **would provide** **level of** **safety for** **passengers in** **the EMB-550** **that would** **be acceptable** **to that** **required for** **passengers of** **airplanes in** **commercial operation.** **14 CFR** **11.81 (f)** **Summary For** **Publication In** **Federal Register** **Embraer requests** **an Exemption** **from 14** **CFR 25.813(e)** **Amdt. 25-116** **to allow** **the**

### installation**of interior** **doors between** **passenger's compartment** **and emergency** **exits in** **the EM6-550** **aircraft. Certain** **design features** **would be** **required to** **ensure that** **the door** **would not** **adversely affect** **safety. 14** **CFR 11.81** **(g) Additional** **Information to** **Support Request** **Exemption N°** **9458 (Regulatory** **Docket N°** **FAA-2007-27903 issued** **to Embraer** **on August** **2, 2007.** **This exemption** **is provided** **as evidence** **that the** **FAA has** **previously granted** **exemption from** **the same** **regulation, with** **the same** **provisions, for** **the same** **type aircraft** **as that** **which is** **being requested** **by this** **petition. Conclusions** **EMBRAER believes** **that the** **EMB-550 interior** **arrangement design,** **which is** **specific for** **private use** **as well** **as its** **operation private** **and the** **characteristics proposals** **for the** **occupant protection** **must justify** **the granting** **of exemption.**