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226. Airworthiness Directives; Boeing Model 737-100, -200, -200C, - 300, -400, and -500 Series Airplanes

PROPOSED RULES: Boeing Model 737-100, -200, -200C, -300, -400, and -500 Series Airplanes,

We propose to adopt a new airworthiness directive (AD) for certain Boeing Model 737100, 200, 200C, 300, 400, and 500 series airplanes. This proposed AD would require replacing the existing straightto90degree hose assembly for the Lavatory ``A'' water supply. The replacement is a new straight hose assembly and a separate 90degree elbow fitting.
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

227. Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440), CL-600-2C10 (Regional Jet

PROPOSED RULES: Bombardier Model CL 600 2B19 (Regional Jet Series 100 & 440), CL 600 2C10 (Regional Jet Series 700, 701 & 702), CL 600 2D15 (Regional Jet Series 705), and C; Correction,

The FAA is correcting typographical errors in two NPRMs that were published in the Federal Register on January 4, 2008 (73 FR 833, and 73 FR 830). The errors resulted in incorrect docket numbers. One NPRM applies to all Bombardier Model CL6002B19 (Regional Jet Series 100 & 440) airplanes. The other NPRM applies to all Bombardier Model CL6002C10
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

228. Airworthiness Directives; Przedsiebiorstwo Doswiadczalno- Produkcyjne Szybownictwa ``PZL-Bielsko'' Model SZD-50-3

RULES: Przedsiebiorstwo Doswiadczalno-Produkcyjne Szybownictwa “PZL-Bielsko” Model SZD-50-3 “Puchacz” Gliders,

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

On the preflight check of

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

229. Airworthiness Directives; General Electric Company CF6-45 and CF6-50 Series Turbofan Engines

PROPOSED RULES: General Electric Company CF6-45 and CF6-50 Series Turbofan Engines,

This supplemental NPRM revises an earlier proposed airworthiness directive (AD), applicable to certain General Electric Company (GE) CF645 and CF650 series turbofan engines. That proposed AD would have required inspecting and reworking certain forward and aft centerbodies of the long fixed core exhaust nozzle (LFCEN) assembly. That proposed AD
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

230. Airworthiness Directives; Boeing Model 757 Airplanes

RULES: Boeing Model 757 Airplanes,

The FAA is adopting a new airworthiness directive (AD) for all Boeing Model 757 airplanes. This AD requires revising the Airworthiness Limitations (AWLs) section of the Instructions for Continued Airworthiness by incorporating new limitations for fuel tank systems to satisfy Special Federal Aviation Regulation No. 88 requirements. This AD also
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

231. Airworthiness Directives; Boeing Model 747SP Series Airplanes

PROPOSED RULES: Boeing Model 747SP Series Airplanes,

We propose to adopt a new airworthiness directive (AD) for all Boeing Model 747SP series airplanes. This proposed AD would require repetitive lubrication of the rudder tab hinges and repetitive replacement of the rudder tab control rods. This proposed AD results from reports of freeplayinduced vibration of the control surfaces on Boeing Model 727,
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

232. Airworthiness Directives; EADS SOCATA Model TBM 700 Airplanes

PROPOSED RULES: Airworthiness Directives; EADS SOCATA Model TBM 700 Airplanes,

We propose to adopt a new airworthiness directive (AD) for the products listed above that would supersede an existing AD. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

233. Airworthiness Directives; Boeing Model 747-400, 747-400D, and 747-400F Series Airplanes

RULES: Boeing Model 747-400, 747-400D, and 747-400F Series Airplanes,

The FAA is superseding an existing airworthiness directive (AD) that applies to all Boeing Model 747400, 747400D, and 747400F series airplanes. That AD currently requires reviewing airplane maintenance records, doing repetitive inspections for cracking of the yaw damper actuator portion of the upper and lower rudder power control modules (PCMs),
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

234. Airworthiness Directives; Viking Air Limited Models DHC-6-1, DHC- 6-100, DHC-6-200, and DHC-6-300 Airplanes

RULES: Viking Air Limited Models DHC-6-1, DHC-6-100, DHC 6 200, and DHC-6-300 Airplanes,

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

Service experience

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

235. Airworthiness Directives; Bell Helicopter Textron Canada Model 206A, 206B, 206L, 206L-1, 206L-3, and 206L-4

RULES: Bell Helicopter Textron Canada Model 206A, 206B, 206L, 206L-1, 206L-3, and 206L-4 Helicopters,

We are adopting a new airworthiness directive (AD) for the specified Bell Helicopter Textron Canada (BHTC) Model 206A, 206B, 206L, 206L1, 206L3, and 206L4 helicopters. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority to identify and correct an unsafe condition on an aviation product.
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

236. Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (RRD) Dart 528, 529, 532, 535, 542, and 552 Series

RULES: Rolls-Royce Deutschland Ltd & Co KG (RRD) Dart 528, et al.,

The FAA is superseding an existing airworthiness directive (AD) for RRD Dart 528, 529, 532, 535, 542, and 552 Series turboprop engines. That AD currently requires a dimensional inspection of the intermediate pressure turbine (IPT) disk or an ultrasonic inspection of the seal arm contact between the high pressure turbine (HPT) and the IPT disk seal
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

237. Airworthiness Directives; Pilatus Aircraft Ltd. Model PC-6 Airplanes

RULES: Pilatus Aircraft Ltd. Model PC-6 Airplanes,

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

This Airworthiness

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

238. Airworthiness Directives; Boeing Model 777 Airplanes

PROPOSED RULES: Boeing Model 777 Airplanes,

The FAA proposes to supersede an existing airworthiness directive (AD) that applies to all Boeing Model 777 airplanes. The existing AD requires, for the drive mechanism of the horizontal stabilizer, repetitive detailed inspections for discrepancies, repetitive lubrication of the ballnut and ballscrew, repetitive measurements of the freeplay
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

239. Airworthiness Directives; Boeing Model 747-100, 747-100B, 747- 200B, 747-200C, 747-200F, 747-300, 747SR, and 747SP

PROPOSED RULES: Boeing Model 747-100, 747-100B, 747-200B, 747-200C, 747 200F, 747-300, 747SR, and 747SP Series Airplanes,

The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Boeing Model 747100, 747100B, 747200B, 747200C, 747200F, 747300, 747SR, and 747SP series airplanes. The existing AD currently requires an inspection to determine if acceptable external skin doublers are installed at the stringer 6 (S6) lap splices,
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

240. Airworthiness Directives; BURKHART GROB LUFT--UND RAUMFAHRT GmbH & CO KG G103 Series Gliders

PROPOSED RULES: BURKHART GROB LUFT - UND RAUMFAHRT GmbH and CO KG G103 Series Gliders,

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

The

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

241. Airworthiness Directives; Saab AB, Saab Aerosystems Model SAAB 2000 Airplanes

RULES: Saab AB, Saab Aerosystems Model SAAB 2000 Airplanes,

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

Subsequent to

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

242. Airworthiness Directives; General Electric Co. (GE) CF6-80A Series Turbofan Engines

PROPOSED RULES: General Electric Co. (GE) CF6-80A Series Turbofan Engines,

The FAA proposes to adopt a new airworthiness directive (AD) for GE CF680A series turbofan engines with a highpressure turbine rotor (HPTR) stage 1 disk, part number (P/N) 9367M45G06, installed. This proposed AD would require removing any HPTR stage 1 disk, P/N 9367M45G06, before exceeding 2,075 cyclessincenew (CSN). This proposed AD results from
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

243. Airworthiness Directives; Erickson Air-Crane Incorporated (Erickson) Model S-64F Helicopters

PROPOSED RULES: Erickson Air-Crane Incorporated (Erickson) Model S 64F Helicopters,

This document proposes adopting a new airworthiness directive (AD) for Erickson Model S64F helicopters. The AD would require inspections for cracking or working rivets in each left and right splice fitting (transition fitting), the pylon bulkhead assembly canted (bulkhead assembly), the pylon steel strap (strap), and the attaching rotary rudder
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

244. Airworthiness Directives; Boeing Model 747 Airplanes

RULES: Boeing Model 747 Airplanes,

We are adopting a new airworthiness directive (AD) for certain Boeing Model 747 airplanes. This AD requires inspecting the trunnion fork assembly of the wing landing gears to determine the part number and serial number and to determine the category of the trunnion fork assemblies. For certain airplanes, this AD also requires, if necessary, various
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

245. Airworthiness Directives; McCauley Propeller Systems Propeller Models B5JFR36C1101/114GCA-0, C5JFR36C1102/L114GCA-0,

RULES: McCauley Propeller Systems Propeller Models,

The FAA is superseding three existing airworthiness directives (ADs) for McCauley Propeller Systems propeller models B5JFR36C1101/ 114GCA0, C5JFR36C1102/L114GCA0, B5JFR36C1103/114HCA0, and
C5JFR36C1104/L114HCA0. Those ADs currently require fluorescent penetrant inspections (FPI) and eddy current inspections (ECI) of propeller blades for cracks, and
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

246. Airworthiness Directives; APEX Aircraft Model CA 10B Airplanes

RULES: APEX Aircraft Model CA 10B Airplanes,

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

A CAP 10B experienced an

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

247. Airworthiness Directives; Various Transport Category Airplanes Equipped with Auxiliary Fuel Tanks Installed in

PROPOSED RULES: Various Transport Category Airplanes Equipped with Auxiliary Fuel Tanks Installed in Accordance with Certain Supplemental Type Certificates,

The FAA proposes to adopt a new airworthiness directive (AD) for various transport category airplanes. This proposed AD would require deactivation of PATS Aircraft, LLC, auxiliary fuel tanks. This proposed AD results from fuel system reviews conducted by the manufacturer, which identified potential unsafe conditions for which the manufacturer has
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

248. Airworthiness Directives; Cirrus Design Corporation Model SR20 Airplanes

PROPOSED RULES: Cirrus Design Corporation Model SR20 Airplanes,

We propose to adopt a new airworthiness directive (AD) for certain Cirrus Design Corporation (CDC) Model SR20 airplanes. This proposed AD would require an inspection and replacement as necessary of the heat exchanger. This proposed AD results from the discovery of engine exhaust fumes in the cabin of CDC Model SR20 airplanes. We are proposing this
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

249. Airworthiness Directives; Boeing Model 757-200, -200PF, and - 200CB Series Airplanes

RULES: Boeing Model 757 200 et al.,

The FAA is superseding an existing airworthiness directive (AD) that applies to certain Boeing Model 757200, 200PF, and 200CB series airplanes powered by RollsRoyce engines. The existing AD currently requires repetitive inspections of the shim installation between the vertical flange and bulkhead, and repair if necessary. The existing AD also
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

250. Airworthiness Directives; Eurocopter Deutschland Model EC135 Helicopters

RULES: Eurocopter Deutschland Model EC135 Helicopters,

We are adopting a new airworthiness directive (AD) for Eurocopter Deutschland (Eurocopter) Model EC135 helicopters. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The European Aviation Safety Agency
DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

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