|
Airworthiness Directives in respect of Aircraft/rotorcraft certified by India |
Last updated 01st April 2013
|
Number |
Issued by |
Issue Date |
Subject |
Type Approval Holder |
Effective Date |
Revision |
Pre-revised AD |
|
01-07-2008 |
Fuselage – General – Visual
inspection on fitting connecting tail boom top Shell and front spar of
vertical fin |
Rotary Wing Research &
Design Centre, Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final
issue date |
Nil |
Not applicable |
|
|
|
01-07-2008 |
Rotor (S) – Rotor blades –
One time inspection for bolt head crack on bolt blade fork (big) |
Rotary Wing Research &
Design Centre, Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final
issue date |
Nil |
Not applicable |
|
|
|
01-07-2008 |
Hydraulic Power – Main –
One time check to determine the condition of hydraulic hoses connected to
Tail rotor actuator and clearance between hydraulic hose and TGB fairing. |
Rotary Wing Research &
Design Centre, Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final
issue date |
Nil |
Not applicable |
|
|
|
01-07-2008 |
Engine Controls – Power
Control – One time inspection of collective pitch anticipator (CPA)
connector, CPA cable routing and CPA installation on the helicopter. |
Rotary Wing Research &
Design Centre, Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final
issue date |
Nil |
Not applicable |
|
|
|
01-11-2008 |
Landing Gear – Nose
Landing Gear Assembly |
National Aerospace
Laboratories (NAL), Bangalore |
Within 21 days after final
issue date |
Nil |
Not applicable |
|
|
|
01-11-2008 |
Flight Control –
Deactivation of dual control |
National Aerospace
Laboratories (NAL), Bangalore |
Within 21 days after final
issue date |
Nil |
Not applicable |
|
|
|
01-11-2008 |
Landing Gear – Nose
Landing Gear shock absorber bracket Fuselage – Attach/attached
fittings (to Fire wall) |
National Aerospace
Laboratories (NAL), Bangalore |
Within 21 days after final
issue date |
Nil |
Not applicable |
|
|
|
01-11-2008 |
Fuselage – Attach/attached
fittings (to Fire wall) Power plant – Engine mount
assembly |
National Aerospace
Laboratories (NAL), Bangalore |
Within 21 days after final
issue date |
Nil |
Not applicable |
|
|
|
02-03-2009 |
Rotors Flight Control –
Rotor Control – marking on cyclic stick, trimming of L-angle of separator
wall, provision of additional safety and modification of fork assembly |
Rotary Wing Research &
Design Centre, Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final
issue date |
Nil |
Not applicable |
|
|
|
02-03-2009 |
Stabilizers – Vertical
Stabilizer – Installation of web stiffener on front spar of fin torsion box
assembly |
Rotary Wing Research &
Design Centre, Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final
issue date |
Nil |
Not applicable |
|
|
|
02-03-2009 |
Tail Rotor – Indicating –
Replacement of velocimeter model 7310 with model 8866-1 |
Rotary Wing Research &
Design Centre, Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final
issue date |
Nil |
Not applicable |
|
|
|
16-02-2010 |
Rotor Drive (S) – Gearbox
(es) – One time check for presence of water in MGB lubricating oil of Dhruv
helicopter IDS assembly |
Rotary Wing Research &
Design Centre, Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final
issue date |
This AD revises DGCA AD
012 dated 02-03-2009. This AD revision is issued to effect the change that
occurred following re-naming of
R&D Directorate as Aircraft Engineering Directorate |
||
|
|
16-02-2010 |
Navigation – Dependent
Position Determination – Design improvement in GPS antenna bracket |
Rotary Wing Research &
Design Centre, Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final
issue date |
This AD revises DGCA AD
013 dated 02-03-2009. This AD revision is issued to effect the change that
occurred following re-naming of
R&D Directorate as Aircraft Engineering Directorate |
||
|
|
16-02-2010 |
Rotor (S) – Rotor blades –
Ultrasonic (A-scan) inspection of main rotor blades. |
Rotary Wing Research &
Design Centre, Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final
issue date |
This AD revises DGCA AD
014 dated 21-08-2009. This AD revision is issued to effect the change that
occurred following re-naming of
R&D Directorate as Aircraft Engineering Directorate |
||
|
|
16-02-2010 |
TAIL ROTOR DRIVE –
Gearboxes – Installation of modified parts of AGB assembly to control the
interfacing tolerance for avoiding low lube oil pressure |
Rotary Wing Research &
Design Centre, Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final
issue date |
This AD revises DGCA AD
015 dated 21-08-2009. This AD revision is issued to effect the change that
occurred following re-naming of
R&D Directorate as Aircraft Engineering Directorate |
||
| 016 |
|
01.04.2010 | HYDRAULIC POWER – Main – Additional inspections of tail rotor actuator (TRA) flange assembly for crack. | Rotary Wing Research & Design Centre, Hindustan Aeronautics Limited, Bangalore. | Within 21 days after final AD issue date. | Nil | |
|
|
20.08.2010 |
ROTOR (S) – Rotor heads(s) – One time
check on connecting rod assemblies (UCS) for crack |
Rotary Wing Research & Design Centre,
Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final issue date |
Nil |
Not
applicable |
|
|
|
20.08.2010 |
Rotor (S) – Rotor BLADES – One time
fluorescent dye penetrant CD check on bolt- blade fork (big) - MRB |
Rotary Wing Research & Design Centre,
Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final issue date |
Nil |
Not
applicable |
|
|
|
20.08.2010 |
HYDRAULIC POWER – Main – One time
check on tail rotor actuator |
Rotary Wing Research & Design Centre,
Hindustan Aeronautics Limited, Bangalore |
Within 21 days after final issue date |
Nil |
Not
applicable |
|
|
020 |
|
02.11.2010 | STABILIZER – Vertical stabilizer – One time check for crack on IGB rib on fin torsion box assembly & tail boom assembly AFT | Rotary Wing Research & Design Centre, Hindustan Aeronautics Limited, Bangalore | Within 21 days after final issue date | Nil | Not applicable |
| 021 |
|
09.06.2011 | AIR CONDITIONING-Distribution- one time check on interference of air conditioning tube with engine oil scavenge pipe and modification for introducing improved clearance. | Rotary Wing Research & Design Centre, Hindustan Aeronautics Limited, Bangalore | Within 21 days after final issue date | Nil | Not applicable |
| 022 |
|
09.06.2011 | STABILIZER – Vertical stabilizer – Reinforcement of IGB bottom rib and strengthening of IGB rib in fin torsion box assembly. | Rotary Wing Research & Design Centre, Hindustan Aeronautics Limited, Bangalore | Within 21 days after final issue date | Nil | Not applicable |
| 023 |
|
04.07.2011 | Engine Controls – Power Control – Inspection of collective pitch anticipator | Rotary Wing Research & Design Centre, Hindustan Aeronautics Limited, Bangalore | Within 21 days after final AD issue date. | Nil |
Not applicable
|
| 024 |
|
02.09.2011 | TAIL ROTOR DRIVE- Shafts – Check of elastomeric bush seating position on tail drive shaft assemblies (Seg.-3 & Seg.-4) in situ on the helicopter. |
Rotary Wing Research & Design
Centre, Hindustan
Aeronautics Limited, Bangalore
|
Within 14 days after final AD issue date. | Nil | Not applicable |
| 025 |
|
27.02.2012 | ROTOR(S) - Rotor head(s) - One time Torque check on Mounting Bolts of Main Rotor Blade. |
Rotary Wing Research & Design
Centre, Hindustan
Aeronautics Limited, Bangalore
|
Within 21 days after final AD issue date. | Nil | Not applicable |
| 026 |
|
23.07.2012 | Eye-end assembly - Installation of improved steel eye-ends in place of existing titanium eye-ends of collective, longitudinal and lateral connecting rod assemblies. |
Rotary Wing Research and
Design Centre, Hindustan Aeronautics Limited , Bangalore.
|
Within 21 days after final AD issue date. | Nil | Not applicable |
| 027 |
|
23.07.2012 |
Intermediate
Gear Box assembly - Introduction of
soft support at input side of ALH Intermediate Gear Box (IGB) assembly. |
Rotary Wing Research and
Design Centre, Hindustan Aeronautics Limited , Bangalore.
|
Within 21 days after final AD issue date. | Nil | Not applicable |
| 028 |
|
23.07.2012 |
FDR/CVR
potentiometer attachments of cyclic
and directional channels. |
Rotary Wing Research and
Design Centre, Hindustan Aeronautics Limited , Bangalore.
|
Fortwith | Nil | Not applicable |
| 029 |
|
07.09.2012 |
Tail
Rotor Hub Retention Nut. |
Rotary Wing Research and
Design Centre, Hindustan Aeronautics Limited , Bangalore.
|
Within 14 days from the date
of issue of this AD. |
Nil | Not applicable |
| 030 |
|
07.09.2012 | Pilot door, Co-pilot door, sliding door and clamshell door. |
Rotary Wing Research and
Design Centre, Hindustan Aeronautics Limited , Bangalore.
|
Within 14 days from the date
of issue of this AD. |
Nil | Not applicable |