**March 18,** **2011 V;** **EMBRAEH**

### GCF-0325/2011**tlVIBHAtH MCB** **BftbAKr S-\-** **Av Brigadeiro** **Faria Lima.** **2.170 12227-901-SJ** **dos Campos** **SP Brasfl** **Fone (12)** **3927-6481 Fas1** **(12) 3927-1** **!84 PC:179** **US Department** **of Transportation** **1200 New** **Jersey Avenue,** **SE West** **Building Ground** **Floor RoomW12-140** **Washington, DC** **20590 Subject:** **EMB-550 FAA** **Type Validation** **Petition to** **the Exemption** **from 14 CFR** **25.813 (e)** **Amdt. 25-116** **Dear Sir** **(Madam): 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. The** **additional information** **is below:** **Contact Information:** **Embraer 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 Sincerely,** 

### JnJISergio**AugfMo ViSna** **<feCarv~aiM> Rafaet** **Gustavo Fassina** **Marques Airworthiness** **Manager Certification** **Office C.c:** **ANAC-WillianYoshinoriTanji (PCM** **EMB-550) EMBRAER** **Summary of** **Petition Embraer** **requests an** **Exemption for** **the compliance** **of 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. 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).** **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;** 

### Differently**from an** **airline, the** **operator has** **control and** **may restrict** **the public** **and/or select** **the passengers** **of aircraft.** 

# EMBRAER**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.** **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**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. Public** **Interest Because** **the design** **features listed** **above 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.** 

### 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.** **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.**