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84-20-04

final rule

Airworthiness Directives; British Aerospace Model DH-114 Heron series 2A, 2DA, and 2X Series Airplanes

Unsafe Condition: Fatigue failure of the tailplane upper pick-up eyebolts.

Effective: Nov 5, 1984 Category: aircraft Compliance: within 90 days after the effective date of this AD

Why matched: Airworthiness Directives; British Aerospace Model DH-114 Heron series 2A, 2DA, and 2X Series Airplanes

81-21-03

final rule

Airworthiness Directives; British Aerospace Model DH-114 Heron Series 1B and All Series 2 Airplanes

Unsafe Condition: Wing leading edge access doors may not remain properly secured, which could result in door failure during flight.

Effective: Oct 18, 1981 Category: aircraft Compliance: Within 350 hours time in service after the effective date of this AD

Why matched: Airworthiness Directives; British Aerospace Model DH-114 Heron Series 1B and All Series 2 Airplanes

79-02-07

final rule

Airworthiness Directives; Hawker Siddeley Aviation, Limited (British Aerospace) Model DH-104 "Dove" Series Airplanes

Unsafe Condition: Failure of the wing to fuselage attachment and loss of wing in flight due to cracks in the upper three lugs at each end of the center section main spar top boom, P/N 4FS.135 A/1.

Effective: Feb 19, 1979 Category: aircraft Compliance: Within the next 100 hours time in service after the effective date of this AD

Why matched: Airworthiness Directives; Hawker Siddeley Aviation, Limited (British Aerospace) Model DH-104 "Dove" Series Airplanes

76-16-03

final rule

Airworthiness Directives; Hawker Siddeley Aviation Limited Model DH-114 Heron Airplanes

Unsafe Condition: Failure of the wing to fuselage attachment and loss of the wing in flight due to cracks in the upper lugs of the left and right hand side of the upper carry through boom, P/N 14FS345.

Effective: Feb 8, 1979 Category: aircraft Compliance: Within the next 10 hours time in service after the effective date of this AD.

Why matched: Airworthiness Directives; Hawker Siddeley Aviation Limited Model DH-114 Heron Airplanes

78-09-04

final rule

Airworthiness Directives; Hawker Siddeley Aviation Limited Model DH-104 "Dove" Series Airplanes

Unsafe Condition: Cracking and possible failure of the lugs of the lower center section main spar wing to fuselage attachment.

Effective: May 24, 1978 Category: aircraft Compliance: Within one month after the effective date of this AD, unless already accomplished within the last...

Why matched: Airworthiness Directives; Hawker Siddeley Aviation Limited Model DH-104 "Dove" Series Airplanes

77-16-04

final rule

Airworthiness Directives; Hawker Siddeley Aviation, Ltd de Havilland Model DH-104 "Dove" Series Airplanes

Unsafe Condition: Fatigue failure of the wing structure due to insufficient fatigue life of the wing lower spar boom and fuselage center section lower spar boom.

Effective: Aug 31, 1977 Category: aircraft Compliance: Within the next 25 hours time in service after the effective date of this AD or prior to accumula...

Why matched: Airworthiness Directives; Hawker Siddeley Aviation, Ltd de Havilland Model DH-104 "Dove" Series Airplanes

77-15-13

final rule

Airworthiness Directives; Hawker Siddeley Aviation, Limited Model DH-114 Airplanes

Unsafe Condition: Possible seizure of the main landing gear damper ram, P/N AC11164, leading to consequent damage to the aircraft upon landing.

Effective: Aug 24, 1977 Category: aircraft Compliance: within the next 300 hours time in service after the effective date of this AD

Why matched: Airworthiness Directives; Hawker Siddeley Aviation, Limited Model DH-114 Airplanes

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear

77-14-15

final rule

Airworthiness Directives; Hawker Siddeley Aviation, Ltd Model DH-104 Series Airplanes

Unsafe Condition: Corrosion of engine mount stay struts, part numbers 4 EM.357A and 4 EM.359A, could result in structural failure.

Effective: Aug 8, 1977 Category: aircraft Compliance: within the next 50 hours time in service after the effective date of this AD

Why matched: Airworthiness Directives; Hawker Siddeley Aviation, Ltd Model DH-104 Series Airplanes

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

77-14-04

final rule

Airworthiness Directives; Hawker Siddeley Aviation, Ltd Models DH-104 "Dove" and DH-114 "Heron" Airplanes

Unsafe Condition: The possibility that a loss of generated electrical power would be undetected by the flight crew.

Effective: Aug 5, 1977 Category: aircraft Compliance: within the next 500 hours time in service after the effective date of this AD unless already acco...

Why matched: Airworthiness Directives; Hawker Siddeley Aviation, Ltd Models DH-104 "Dove" and DH-114 "Heron" Airplanes

77-12-03

final rule

Airworthiness Directives; Hawker Siddeley Aviation, Ltd Model DH-114 Airplanes

Unsafe Condition: Internal corrosion of the engine mount stay strut, part number 14 EM.337A, could lead to structural failure of the strut.

Effective: Jul 18, 1977 Category: aircraft Compliance: within the next 50 hours time in service after the effective date of this AD

Why matched: Airworthiness Directives; Hawker Siddeley Aviation, Ltd Model DH-114 Airplanes

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

77-13-14

final rule

Airworthiness Directives; Hawker Siddeley Aviation, Limited Model DH-114 Airplanes

Unsafe Condition: Corrosion and cracking of the drag brace fittings at the center section spar lower cap could lead to structural failure of the wing.

Effective: Jul 7, 1977 Category: aircraft Compliance: within the next 50 hours time-in-service after the effective date of this AD

Why matched: Airworthiness Directives; Hawker Siddeley Aviation, Limited Model DH-114 Airplanes

76-10-03

final rule

Airworthiness Directives; Hawker Siddeley Aviation Limited Model DH-104 Airplanes

Unsafe Condition: Corrosion and cracking of the drag brace fittings at the center section spar lower cap could lead to structural failure of the wing.

Effective: Jun 1, 1976 Category: aircraft Compliance: within the next 50 hours time in service after the effective date of this AD

Why matched: Airworthiness Directives; Hawker Siddeley Aviation Limited Model DH-104 Airplanes

76-07-04

final rule

Airworthiness Directives; Hawker Siddeley Aviation Ltd Model DH-114 Heron Airplanes

Unsafe Condition: Cracks in the nose landing gear inner casing could lead to possible collapse of the nose landing gear upon landing.

Effective: Apr 12, 1976 Category: aircraft Compliance: Within the next 50 hours time in service after the effective date, unless already accomplished wi...

Why matched: Airworthiness Directives; Hawker Siddeley Aviation Ltd Model DH-114 Heron Airplanes

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear

76-06-10

final rule

Airworthiness Directives; Hawker Siddeley Aviation, Ltd Model DH-104 "Dove" Airplanes

Unsafe Condition: Cracks in the nose landing gear inner casting could result in failure of the casing and collapse of the nose gear.

Effective: Apr 8, 1976 Category: aircraft Compliance: Within the next 50 hours time in service after the effective date of this AD, unless already acco...

Why matched: Airworthiness Directives; Hawker Siddeley Aviation, Ltd Model DH-104 "Dove" Airplanes

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear

76-06-04

final rule

Airworthiness Directives; Hawker Siddeley Aviation, Ltd Model DH-104 "Dove" Series Airplanes

Unsafe Condition: Failure of engine mounting pick-up brackets due to cracks, cut-outs, nicks, rough edges, or similar defects in the flange edges.

Effective: Mar 29, 1976 Category: aircraft Compliance: within 50 hours' time in service after the effective date of this AD, unless already accomplished...

Why matched: Airworthiness Directives; Hawker Siddeley Aviation, Ltd Model DH-104 "Dove" Series Airplanes

76-02-05

final rule

Airworthiness Directives; Hawker Siddeley Aviation Limited Model DH-104 "Dove" Airplanes

Unsafe Condition: Failure of the lefthand engine mounting frame top tube, P/N 4EM.201A, and consequent tearing away of the engine.

Effective: Jan 30, 1976 Category: aircraft Compliance: Within the next 25 hours' time in service after the effective date of this AD, unless already acc...

Why matched: Airworthiness Directives; Hawker Siddeley Aviation Limited Model DH-104 "Dove" Airplanes

75-27-03

final rule

Airworthiness Directives; Hawker Siddeley Aviation DH-114 Series Airplanes

Unsafe Condition: Cracking of the nose gear adjusting screw (P/N 4U.493).

Effective: Jan 19, 1976 Category: aircraft Compliance: within the next 400 hours' time in service after the effective date of this AD unless already acc...

Why matched: Airworthiness Directives; Hawker Siddeley Aviation DH-114 Series Airplanes

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear

75-27-01

final rule

Airworthiness Directives; Hawker Siddeley Aviation Ltd Model DH-104 Series Airplanes

Unsafe Condition: Cracking of the nose gear and main gear adjusting screws, P/N 4U.493.

Effective: Jan 19, 1976 Category: aircraft Compliance: within the next 250 hours' time in service after the effective date of this AD

Why matched: Airworthiness Directives; Hawker Siddeley Aviation Ltd Model DH-104 Series Airplanes

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear

75-24-10

final rule

Airworthiness Directives; Hawker Siddeley Aviation Limited DH-114 Heron Airplanes

Unsafe Condition: Failure of the wing structure due to cracks in the inboard sections of the left and right wing main spar upper and lower flanges.

Effective: Dec 1, 1975 Category: aircraft Compliance: within the next 50 hours' time in service after the effective date of this AD, unless already acc...

Why matched: Airworthiness Directives; Hawker Siddeley Aviation Limited DH-114 Heron Airplanes

Technical illustration of a riveted aircraft structural panel and frame
Problem area Airframe structure

75-24-06

final rule

Airworthiness Directives; Hawker Siddeley Aviation Limited Hawker Siddeley DH-104 "Dove" Airplanes

Unsafe Condition: Spanwise cracks in the upper and lower wing main spar joint could result in failure of the joint.

Effective: Nov 28, 1975 Category: aircraft Compliance: within the next 50 hours' time in service after the effective date of this AD, unless already acc...

Why matched: Airworthiness Directives; Hawker Siddeley Aviation Limited Hawker Siddeley DH-104 "Dove" Airplanes

Technical illustration of a riveted aircraft structural panel and frame
Problem area Airframe structure

75-16-22

final rule

Airworthiness Directives; de Havilland Model DH-114 Airplanes

Unsafe Condition: Excessive wear of the counterweight bushings and subsequent ineffectiveness of the counterweight function.

Effective: Aug 8, 1975 Category: aircraft Compliance: within the next 200 hours' time in service after the effective date of this AD, unless already ac...

Why matched: Airworthiness Directives; de Havilland Model DH-114 Airplanes

73-17-03

final rule

Airworthiness Directives; Hawker Siddeley Model DH-114 Heron Airplanes

Unsafe Condition: Failure of the lower flap hinge-to-wing attachment bolts at Rib No. 7, the fork joint fitting (P/N 14 WF.1) and the eye joint fitting (P/N 14 WF.3) at Rib No. 2, and the angle brackets at Rib No. 01.

Effective: Sep 13, 1973 Category: aircraft Compliance: Within the next 500 hours' time in service after the effective date; before 13,000 hours' time in...

Why matched: Airworthiness Directives; Hawker Siddeley Model DH-114 Heron Airplanes

70-23-02

final rule

Airworthiness Directives; de Havilland Aircraft Company Ltd Model D.H. 104 Dove Series 7A, 8A, 7AXC, 8AXC Airplanes

Unsafe Condition: Cracks in the wing lower main spar cap in the region of rib 4 and loosened tank door attachment bolts at Wing Sta. 0-40.

Effective: Jul 3, 1973 Category: aircraft Compliance: Within the next 10 hours time in service after receipt of telegram dated October 23, 1970, and th...

Why matched: Airworthiness Directives; de Havilland Aircraft Company Ltd Model D.H. 104 Dove Series 7A, 8A, 7AXC, 8AXC Airplanes

73-13-06

final rule

Airworthiness Directives; Hawker Siddeley Model DH-114 "Heron" Airplanes

Unsafe Condition: Possible inadvertent actuation of aileron and rudder trim in a direction other than that desired and possible interference by the aileron trim jack with the aileron when in its full down position.

Effective: Jun 23, 1973 Category: aircraft Compliance: Prior to September 21, 1973

Why matched: Airworthiness Directives; Hawker Siddeley Model DH-114 "Heron" Airplanes

Technical illustration of an aircraft flight control surface and actuator
Problem area Flight controls

72-12-03

final rule

Airworthiness Directives; Hawker Siddeley Aviation, Ltd de Havilland Model DH-104 "Dove" Airplanes

Unsafe Condition: Failure of the air bottles, P/N B.2994, used in the two main air reservoir assemblies, P/N C.51450, of the pneumatic system.

Effective: Nov 13, 1972 Category: aircraft Compliance: on or before February 1, 1973

Why matched: Airworthiness Directives; Hawker Siddeley Aviation, Ltd de Havilland Model DH-104 "Dove" Airplanes