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87-17-01

final rule

Airworthiness Directives; SCHWEIZER AIRCRAFT CORP Models (including kit built) SGU 1-7; SGS 2-8 (TG-2); SGS 2-12 (TG-3); SGU 1-19; SGU 1-20; SGU 1-21; SGU 2-22, 2-22A, 2-22C, 2- 22CK, 2-22E, 2-22EK; SGS 1-23, 1-23B, 1-23C, 1-23D, 1-23E, 1-23F, 1-23G, 1-23H, 1-23H15; SGS 1-24; SGS 1-26, 1-26A, 1-26B, 1-26C, 1-26D, 1-26E; SGS 2-32; SGS 2-33, 2-33A, 2- 33AK; SGS 1-34, 1-34R; SGS 1-35C; SGS 1-36 (SPRITE) Gliders,

Unsafe Condition: The possibility of the tow release assembly creating a jammed condition during towing and subsequent failure of the tow line to release, which could result in a forced landing.

Effective: Aug 19, 1988 Category: aircraft Compliance: prior to the next flight after the effective date of this AD

Why matched: Airworthiness Directives; SCHWEIZER AIRCRAFT CORP Models (including kit built) SGU 1-7; SGS 2-8 (TG-2); SGS 2-12 (TG-3); SGU 1-19; SGU 1-20; SGU 1-21; SGU 2-22, 2-22A, 2-22C, 2- 22CK, 2-22E, 2-22EK; SGS 1-23, 1-23B, 1-23C, 1-23D, 1-23E, 1-23F, 1-23G, 1-23H, 1-23H15; SGS 1-24; SGS 1-26, 1-26A, 1-26B, 1-26C, 1-26D, 1-26E; SGS 2-32; SGS 2-33, 2-33A, 2- 33AK; SGS 1-34, 1-34R; SGS 1-35C; SGS 1-36 (SPRITE) Gliders,

76-13-11 R1

final rule

Airworthiness Directives; Schweizer Models SGS 2-33, SGS 2-33A, SGU 2-22C, SGU 2-22CK, SGU 2-22E, and SGU 2-22EK

Unsafe Condition: Failure of the forward and aft fuselage tubular longerons due to internal corrosion caused by trapped water.

Effective: May 25, 1988 Category: aircraft Compliance: Within the next 30 days or 25 hours in service, whichever occurs first, after the effective date ...

Why matched: Airworthiness Directives; Schweizer Models SGS 2-33, SGS 2-33A, SGU 2-22C, SGU 2-22CK, SGU 2-22E, and SGU 2-22EK

87-02-01

final rule

Airworthiness Directives; SCHWEIZER AIRCRAFT CORP. All Schweizer Gliders (including kit built)

Unsafe Condition: The possibility of the tow-hook inadvertently slipping out of the release-arm and releasing the tow-line, which could result in a forced landing.

Effective: Jan 21, 1987 Category: aircraft Compliance: Within the next 5 tow release actuations after the effective date of this AD, and thereafter at i...

Why matched: Airworthiness Directives; SCHWEIZER AIRCRAFT CORP. All Schweizer Gliders (including kit built)

77-23-10

final rule

Airworthiness Directives; Schweizer Models SGS 2-33, SGS 2-33A, and 2-33AK Gliders

Unsafe Condition: Cracked vertical stabilizer spar-to-fuselage attachment bolts and spar web or elongated holes in the vertical stabilizer spar-to-fuselage attachment structure.

Effective: Jun 21, 1978 Category: aircraft Compliance: Within the next 25 hours in service after the effective date, unless previously accomplished with...

Why matched: Airworthiness Directives; Schweizer Models SGS 2-33, SGS 2-33A, and 2-33AK Gliders

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

71-17-09

final rule

Airworthiness Directives; Schweizer Model SGS 1-23H Glider

Unsafe Condition: Excessively loose rudder fittings can cause severe oscillations and vibrations.

Effective: Aug 26, 1971 Category: aircraft Compliance: Within the next 25 hours time in service unless accomplished within the last 75 hours time in ser...

Why matched: Airworthiness Directives; Schweizer Model SGS 1-23H Glider

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