Thu, Mar 23, 2006
Applicability:
Model BK 117, BK117A-3, BK117A-4, BK117B-1, BK117B-2, and BK117C-1
helicopters; all main rotor blade part numbers.
Requirement:
1. Revise the KHI-BK117 Maintenance Manual to Revision No. 14
(or later approved revision) for Models KHI-BK 117, BK117A-3,
BK117A-4, BK117B-1, BK117B-2, and Revision No. 2 (or later approved
revision) for Model KHIBK117C-1.
2. Perform the inspection in accordance with the inspection
interval and method specified in the KHI-BK117 Maintenance Manual,
revised by Requirement 1. If the inspection results exceed the
allowable limit specified in the KHI-BK117 Maintenance Manual,
before further flight, contact KHI Customer Service for technical
advice.
Note 1: Kawasaki Service Bulletin No.
KSB-117-115A refers.
Note 2: JCAB AD TCD-4114A-2006
refers.
Compliance: Initially, before further flight
after 28 March 2006. Thereafter as specified in Requirement 2. This
Amendment becomes effective on 28 March 2006.
Background: In
response to incidents, the manufacturer recommended an immediate
inspection for bulging on the upper and lower surfaces of the main
rotor blades in the area of the outboard lead balance weight.
Amendment 1 referenced the JCAB AD and the Kawasaki service
bulletin rather than the LBA AD and the MBB service bulletin of the
initial issue. Amendment 2 introduced an additional blade part
number to applicability. Amendment 3 is issued in response to a new
JCAB AD, which expands applicability to all main rotor blade part
numbers. Amendment 4 is issued in response to a new JCAB AD, which
transfers the inspection requirements of this Directive to the
KHI-BK117 Maintenance Manual. This also introduces an additional
inspection. The original issue of this Airworthiness Directive
became effective on 13 October 1994.
More News
Touchdown Zone Lighting Two rows of transverse light bars located symmetrically about the runway centerline normally at 100 foot intervals. The basic system extends 3,000 feet alon>[...]
“Discovery and innovation are central to our mission at Virgin Galactic. We’re excited to build on our successful record of facilitating scientific experiments in subor>[...]
"We are reaching out to you today on behalf of the Popular Rotorcraft Association because we need your help. We are dangerously close to losing a critical resource that if lost, wi>[...]
UAS Traffic Management (UTM) The unmanned aircraft traffic management ecosystem that will allow multiple low altitude BVLOS operations and which is separate from, but complementary>[...]
Aero Linx: Society of Aviation and Flight Educators (SAFE) SAFE is a member-oriented organization of aviation educators fostering professionalism and excellence in aviation through>[...]
ANN's Daily Aero-Term (05.02.24): Touchdown Zone Lighting
See All