AD 99-25-15

final rule
Data completeness: 70%

Airworthiness Directives; Airbus Model A300, A310, A300-600 Series Airplanes

AD Number
99-25-15
Status
final_rule
Effective Date
Product Category
aircraft
Docket
98-NM-303-AD
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Airbus A300 B2-1A Airworthiness Directives; Airbus Model A300, A310, A300-600 Series Airplanes
aircraft Airbus A300 B2-1C Airworthiness Directives; Airbus Model A300, A310, A300-600 Series Airplanes
aircraft Airbus A300 B2-203 Airworthiness Directives; Airbus Model A300, A310, A300-600 Series Airplanes
aircraft Airbus A300 B2K-3C Airworthiness Directives; Airbus Model A300, A310, A300-600 Series Airplanes
aircraft Airbus A300 B4-103 Airworthiness Directives; Airbus Model A300, A310, A300-600 Series Airplanes
aircraft Airbus A300 B4-203 Airworthiness Directives; Airbus Model A300, A310, A300-600 Series Airplanes
aircraft Airbus A300 B4-2C Airworthiness Directives; Airbus Model A300, A310, A300-600 Series Airplanes
aircraft Airbus A300 B4-601 Airworthiness Directives; Airbus Model A300, A310, A300-600 Series Airplanes
aircraft Airbus A300 B4-603 Airworthiness Directives; Airbus Model A300, A310, A300-600 Series Airplanes
aircraft Airbus A300 B4-605R Airworthiness Directives; Airbus Model A300, A310, A300-600 Series Airplanes

Unsafe Condition

Malfunction of the free fall control mechanism of the landing gear could result in inability to extend the main landing gear (MLG) in the event of hydraulic extension system failure.

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

Required Actions

Perform a one-time operational test within 600 flight hours after August 12, 1998. Conduct initial functional test within 10 months after August 12, 1998, followed by repetitive tests every 12 months until modification. Modify the free fall control mechanism per specified service bulletins within 66 months after August 12, 1998.

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

Compliance Time

Within 66 months after August 12, 1998 for modification; earlier tests have varying deadlines

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

Affected Aircraft

Airbus Model A300, A300-600, and A310 series airplanes with specific modification statuses (e.g., 02781 accomplished but 03433/04443 not, or SB A310-32-2111 accomplished).

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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