This amendment adopts a new airworthiness directive (AD) for Enstrom Helicopter Corporation (EHC) Model TH28 and 480 helicopters. This AD requires establishing a life limit for certain upper and lower main rotor hub plates of 5000 hours timeinservice (TIS), creating a component history card or equivalent record, and replacing each main rotor hub

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD) that is applicable to Pratt & Whitney Canada (PWC) models PW306A and PW306B turbofan engines. This amendment requires removing compressor rotor 2nd, 3rd, and 4th stage drum assemblies and impellers from service before exceeding new, lower cyclic life limits. This amendment is prompted by the

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This action revises an earlier proposed airworthiness directive (AD), applicable to certain Pratt & Whitney JT9D series turbofan engines, that would supersede an existing airworthiness directive (AD) by adding additional critical lifelimited parts for enhanced inspection. That proposal was prompted by an FAA study of in service events involving

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness [[Page 10391]]
directive (AD) that is applicable to all Boeing Model 737100 and 200 series airplanes. This proposal would require repetitive inspections to find fatigue cracking in the main deck floor beams located at certain body stations, and repair, if necessary. This proposal also

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to RollsRoyce (RR) Corporation (formerly Allison Engine Company) AE 3007A and AE 3007C model engines with high pressure turbine (HPT) 1st to 2nd stage turbine spacer part number (P/N) 23058369 installed. This proposal would require removal and replacement

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all McDonnell Douglas Model DC9 51 and DC983 series airplanes modified by Supplemental Type Certificate SA8026NM. This proposal would require deactivation of the inflight entertainment (IFE) system and removal of the system from the airplane. This action

DEPARTMENT OF TRANSPORTATION : Treasury Department

This document adopts a new airworthiness directive (AD) that is applicable to certain EMBRAER Model EMB135 and 145 series airplanes. This action requires a onetime inspection to detect incorrect wiring of electrical connectors to the pressure switches and cartridges on the fire extinguisher bottles for the engines and the auxiliary power unit

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes superseding an existing airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S 76A, S76B, and S76C helicopters. That AD currently requires, before further flight, performing a fluorescent penetrant inspection (FPI) of the main rotor shaft assembly (shaft). Also, a recurring FPI and visual inspection

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Raytheon Model Hawker 800XP series airplanes and certain Model Hawker 800 (U125A military) airplanes. This proposal would require a onetime inspection of an attachment bolt in the main landing gear (MLG) door system to determine whether the

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

AGENCY: Federal Aviation Administration, DOT.
ACTION: Notice of proposed rulemaking (NPRM).
SUMMARY: This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Airbus Model A300 F4605R
[[Page 21293]]
airplanes. This proposal would require installation of external doublers at frames

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC8 series airplanes, that requires installation of heat shrinkable tubing or application of PeelKote on each terminal connection of all cabin lighting switches in the forward and aft cabin electrical service panels. This action is necessary to

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD), applicable to certain Saab Model SAAB 2000 series airplanes, that requires a modification involving nondestructive test inspections of the 34 fastener holes in each rear wing spar, corrective action, if necessary, and cold working of the holes to increase fatigue life of the rear spar web.

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment supersedes an existing airworthiness directive (AD) that is applicable to RollsRoyce plc. (RR) RB211 Trent 76860, Trent 77260, and Trent 772B60 turbofan engines. That AD currently requires the removal of low pressure compressor (LPC) fan blades, initial and repetitive ultrasonic inspections for cracks in LPC fan blade dovetail

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD) for Eurocopter France (ECF) Model AS365N3 helicopters that requires modifying the Full Authority Digital Engine Control (FADEC) software within 90 days after the effective date of this AD. This amendment is prompted by a design problem in the FADEC ``power loss printed circuit board''

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD) that is applicable to certain Airbus Model A300 B2 and B4 series airplanes, and certain Model A300 B4600, B4600R, and F4600R (collectively called A300600) series airplanes. This action requires a onetime inspection to detect cracks in gear rib 5 (left and right) of the main landing gear

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD), applicable to certain Aerospatiale Model ATR42200, 300, 320, and 500 series airplanes; and Model ATR72 series airplanes; that requires replacement of the existing uplock boxes of the main and nose landing gears with modified uplock boxes. The actions specified by this AD are intended to

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model DC1010, 15, 30, 30F (KC10A and KDC10 military), and 40 series airplanes; and Model MD1010F series airplanes. This proposal would require an inspection to verify that the wire connections at circuit breakers are properly

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment supersedes an existing airworthiness directive (AD), applicable to all Boeing Model 737600, 700, and 800 series airplanes, that currently requires an inspection of the power distribution panels (PDP) to verify proper installation of the power feeder terminals and associated hardware, and corrective actions, if necessary. The

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD) that applies to certain SOCATAGroupe AEROSPATIALE (Socata) Model TBM 700 airplanes. This AD requires you to inspect for a low point in the fuel tank air vent valve hose; and reroute the hose as necessary. This AD is the result of mandatory continuing airworthiness information (MCAI) issued

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document publishes in the Federal Register an amendment adopting Emergency Airworthiness Directive (AD) 20002552 which was sent previously to all known U.S. owners and operators of MD Helicopters, Inc. (MDHI) Model 369A, H, HE, HM, HS, D, E, FF, and 500N helicopters. This amendment supersedes an existing emergency AD that requires, before

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD), applicable to all Short Brothers Model SD360 SHERPA, SD3SHERPA, SD3 30, and SD360 series airplanes, that requires replacement of the existing pneumatic deicing boot pressure indicator switch with a newly designed switch. This amendment is prompted by an occurrence on a similar airplane model

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model MD11 series airplanes. This proposal would require installation of protective sleeving on the right emergency alternating current wire assembly of the overhead switch panel. This action is necessary to ensure that

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This document proposes the adoption of a new airworthiness directive (AD) for Enstrom Helicopter Corporation (EHC) Model TH28 and 480 helicopters. The AD would require establishing a life limit for certain upper and lower main rotor hub plates of 5000 hours timein service (TIS), creating a component history card or equivalent record, and replacing

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 767200 series airplanes modified by supplemental type certificate SA4998NM, that requires modification of the inflight entertainment (IFE) system to connect it to a different power source. This action is necessary to prevent the inability of the flight crew to

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration

This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC10 series airplanes, Model MD10 series airplanes, and Model MD11 series airplanes, that requires repetitive inspections of the number 1 and 2 electric motors of the auxiliary hydraulic pump for electrical resistance, continuity, mechanical

DEPARTMENT OF TRANSPORTATION : Federal Aviation Administration