9R-TE-BBXA-BRB-13-0314 June 19 ,2 013

Docket Management Facility U.S
. Department of Transportation 1200 New Jersey Avenue , SE West Building Ground Floor Room W12-140 Washington , DC 20590
Attention: Fe deral Aviation Administration Director , Flight Standards Service, AFS-1 The Boeing Company P.O
. Box 3707 Seattle, WA 98124-2207

Subject: Petition for Renewal of Exe mption from 14 CFR, Section 91.515(a)(1) Reference: (a) Exe mption No
. 9531B , Regulatory Docket No
. F AA-200 1-8987 , dated June 3 0, 2011 (Enclosure 1) (b) Boeing Letter M-7941-954 , dated June 17 , 1982 (c) Exe mption No. 23147 , dated November 23 , 1982 (d) Exe mption No
. 4783 , dated April29 , 1987 (Enclosure 2) The Boeing Company hereby petition s for r e- i ss uanc e of Exe mption No. 9531B (Reference (a)) from 14 CFR Section 91.515 ( a)(1) ofTitle 14, Code of Fe d e ral Re g ulation s (14 CF R) , which:



### .. . permits Bo e in g t o conduct noi se measurement t ests , Gro und Proximity Warni n g System res ea rch and d e velopment , and aircraft certification tests at a ltitud es l ess t h an l , OOOfeet above th e surface or l , OOOf eet from any mountain, hill , or ot h e r obstruction to flight. Reference (a) is the most recent extension of the exemption. Reference (b) was the orig i na l request for exemption from 14 CFR 91.515(a)(l)
. Reference (c) granted the origina l exemption with an expiration date ofNovember 30 , 1984
. Reference (d) was are-iss uance of the original Reference (c) exemption.

# fi---BDEING

9R-TE-BBXA-BRB-13-0314 June 19 ,2 013
The Reasons and Rationale for the requested renewal of Exemption No. 9531 remain unchanged and are re-stated below: Existing FAA/Boeing approved Flight Test risk mitigation procedures for such flights require build down to the appropriate altitudes , Instrument Flight Rules (lFR) procedures to intercept and fly the ILS Localizer, operations in known (flat) terrain area, etc. It is also critical to note that these FAA-approved procedures are tailored to provide exemplary risk mitigation and safe operations for both day and night operations. Hence , in consideration of the constraints otherwise imposed by this exemption, safety is in no way compromised by the granting thereof. Ex tensive Boeing meteorological analysis shows that conditions conducive to efficient noise test operations exist primarily during a very small window of opportunity near sunrise and/or sunset. Noise testing involves a large test and support crew, for extended periods. The requirement for such specific meteorological conditions mandates testing during the hours these conditions exist , and puts the entire test team on a schedule to s upport this testing. The granting requested herein wi ll additionally facilitate valuable and efficient utilization of crew and support resources. The flights are a required and unavoidable part of the research and development and aircraft certification process. Renewal of this e x emption serves the public welfare in that the request is reasonable and warranted , testing proves the safety of the airplanes, and establishes compliance with the community noise provision s of the Code of Federal Regulations (CFR). Conclusion: In consideration of the above , Boeing requests renewal of the Reference (a) Exempt ion. Since the current exemption expires October 31 , 2013, we would like to request the exemption be renewed with an expiration date of October 31 , 2015
. This Exemption renewal request is being s ubmitt ed electronica ll y only, per 14 CFR 

### § 11.63. 1f the original signed copy or an y additional information is required pursuant to this petition , please contact Colin S. Fender at 206 -5 44 -1974
. Sincerely ,

Cai tlin M
. Randles Supervisor, FAA Coordination Boeing Flight Test Engineering 9R-TE-BBXA M/C 14-KF Tel. (206) 304-0075



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