Federal Aviation Administration March 9, 2017 – Federal Register Recent Federal Regulation Documents

Airworthiness Directives; CFM International S.A. Turbofan Engines
Document Number: 2017-04656
Type: Rule
Date: 2017-03-09
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for certain CFM International S.A. (CFM) CFM56-5 turbofan engines. This AD requires removal of the radial drive shaft (RDS) assembly and the RDS outer housing and their replacement with parts eligible for installation. This AD was prompted by reports of the failure of the RDS on CFM CFM56- 5B engines. We are issuing this AD to correct the unsafe condition on these products.
Airworthiness Directives; Safran Helicopter Engines, S.A. Turboshaft Engines
Document Number: 2017-04634
Type: Rule
Date: 2017-03-09
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for all Safran Helicopter Engines, S.A. Arriel 2B turboshaft engines. This AD requires removing any pre-modification (mod) TU 158 hydro-mechanical metering unit (HMU) and replacing with a part eligible for installation. This AD was prompted by a report of an uncommanded in- flight shutdown (IFSD) on a single-engine helicopter, caused by a low returning spring rate of the needle of the HMU. We are issuing this AD to correct the unsafe condition on these products.
Airworthiness Directives; Pratt & Whitney Division Turbofan Engines
Document Number: 2017-04627
Type: Rule
Date: 2017-03-09
Agency: Federal Aviation Administration, Department of Transportation
We are adopting a new airworthiness directive (AD) for all Pratt & Whitney Division (PW) PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 turbofan engines. This AD was prompted by an uncontained failure of a high-pressure turbine (HPT) hub during takeoff. This AD requires an inspection to measure the surface condition of the aft side web/rim fillet of HPT 1st stage hubs and removal from service of hubs that fail inspection. We are issuing this AD to correct the unsafe condition on these products.
Airworthiness Directives; The Boeing Company Airplanes
Document Number: 2017-04598
Type: Proposed Rule
Date: 2017-03-09
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 737-300, -400, and -500 series airplanes. This proposed AD was prompted by a manufacturer's review that showed that the tank access door at a certain wing buttock line did not have an engineered ground path with the mating wing structure. This proposed AD would require replacing the tank access door, doing a check of the electrical bond, doing related investigative and corrective actions if necessary, and revising the maintenance or inspection program by incorporating an airworthiness limitation (AWL). We are proposing this AD to address the unsafe condition on these products.
Amendment of Air Traffic Service (ATS) Routes Q-917 and Q-923; Northcentral United States
Document Number: 2017-04568
Type: Rule
Date: 2017-03-09
Agency: Federal Aviation Administration, Department of Transportation
The FAA is amending two high altitude area navigation (RNAV) Q-routes that cross the United States (U.S.)/Canada border in the northcentral U.S. to update the waypoint name for one Canadian waypoint listed in the Q-route descriptions. Specifically, this action changes the SASUT waypoint name to DUTEL in RNAV routes Q-917 and Q-923 to match the waypoint information contained in the FAA and Canadian aeronautical databases. No air traffic services are affected by this action.
Airworthiness Directives; The Boeing Company Airplanes
Document Number: 2017-04561
Type: Proposed Rule
Date: 2017-03-09
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes; Model 757 airplanes; and Model 767 airplanes. This proposed AD was prompted by reports of latently failed motor operated valve (MOV) actuators of the fuel shutoff valves. This proposed AD would require replacing certain MOV actuators of the fuel shutoff valves for the left and right engines (all airplanes) and of the auxiliary power unit (APU) fuel shutoff valve (Model 757 and Model 767 airplanes); and revising the maintenance or inspection program, as applicable, to incorporate certain airworthiness limitations (AWLs). We are proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; CFM International S.A. Turbofan Engines
Document Number: 2017-04523
Type: Proposed Rule
Date: 2017-03-09
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain CFM International S.A. (CFM) CFM56-3, -3B, and -3C turbofan engines. This proposed AD was prompted by a report of dual-engine loss of thrust control that resulted in an air turn back. This proposed AD would require initial and repetitive checks of the variable stator vane (VSV) actuation system in the high-pressure compressor (HPC). We are proposing this AD to correct the unsafe condition on these products.