AD 98-20-35

final rule
Data completeness: 70%

[Correction] Airworthiness Directives; Israel Aircraft Industries (IAI), Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A Series Airplanes

AD Number
98-20-35
Status
final_rule
Effective Date
Product Category
aircraft
Docket
98-NM-108-AD
FR Citation
Federal Register: September 29, 1998 (Volume 63, Number 188)

Applicability

TypeManufacturerModelDetails
aircraft Israel Aircraft Industries, Ltd. 1121 [Correction] Airworthiness Directives; Israel Aircraft Industries (IAI), Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A Series Airplanes
aircraft Israel Aircraft Industries, Ltd. 1121A [Correction] Airworthiness Directives; Israel Aircraft Industries (IAI), Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A Series Airplanes
aircraft Israel Aircraft Industries, Ltd. 1121B [Correction] Airworthiness Directives; Israel Aircraft Industries (IAI), Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A Series Airplanes
aircraft Israel Aircraft Industries, Ltd. 1123 [Correction] Airworthiness Directives; Israel Aircraft Industries (IAI), Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A Series Airplanes
aircraft Israel Aircraft Industries, Ltd. 1124 [Correction] Airworthiness Directives; Israel Aircraft Industries (IAI), Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A Series Airplanes
aircraft Israel Aircraft Industries, Ltd. 1124A [Correction] Airworthiness Directives; Israel Aircraft Industries (IAI), Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A Series Airplanes

Unsafe Condition

The unsafe condition involves potential failure of the horizontal stabilizer trim actuator's jackscrew integrity and excessive wear of the tie rod, which could lead to loss of pitch control.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Conduct repetitive inspections of the trim actuator to verify jackscrew integrity and detect excessive tie rod wear. Replace the actuator or tie rod if necessary. Accomplish the previously optional terminating action as specified in the referenced service bulletins.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Israel Aircraft Industries, Ltd. Models 1121, 1121A, 1121B, 1123, 1124, and 1124A series airplanes.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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