Airworthiness Directives in respect of Aircraft/rotorcraft certified by India

Last updated 12th June 2017

 

Number

Issued by

Issue Date

Subject

Type Approval Holder

Effective Date

Revision

Pre-revised AD

001

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

002

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

003

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

004

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

005

01-11-2008

Landing Gear Nose Landing Gear Assembly

National Aerospace Laboratories (NAL), Bangalore

Within 21 days after final issue date

Nil

Not applicable

006

01-11-2008

Flight Control Deactivation of dual control

National Aerospace Laboratories (NAL), Bangalore

Within 21 days after final issue date

Nil

Not applicable

007

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

008

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

009

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

010

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

011

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

012R1

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

012

013R1

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

013

014R1 Superseded by AD 034

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

014

015R1

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

015

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

017R1

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

018

 

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

019

 

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 21.03.2013 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
031 02.12.2014 IGB and TGB Assembly Rotary Wing Research and Design Centre, Hindustan Aeronautics Limited , Bangalore.

 

Within 14 days from the date of issue of this AD. Nil Not applicable
032 19.12.2015 TGB fairing-RHS attachment Rotary Wing Research and Design Centre, Hindustan Aeronautics Limited , Bangalore.

 

Within 14 days from the date of issue of this AD. Nil Not applicable
034 06.06.2016 Main Rotor Blade Rotary Wing Research and Design Centre, Hindustan Aeronautics Limited , Bangalore.

 

Forthwith Nil Not applicable
035 01.06.2017 Main and tail Rotor Actuators Rotary Wing Research and Design Centre, Hindustan Aeronautics Limited , Bangalore.

 

Forthwith Nil Not applicable