AD 2007-25-11

final rule
Data completeness: 70%

Airworthiness Directives; Fokker Model F.28 Mark 0070 and 0100 Airplanes

AD Number
2007-25-11
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2007-29256
FR Citation
72 FR 69606

Applicability

TypeManufacturerModelDetails
aircraft Fokker F Airworthiness Directives; Fokker Model F.28 Mark 0070 and 0100 Airplanes
aircraft Aviat Various Airworthiness Directives; Fokker Model F.28 Mark 0070 and 0100 Airplanes

Unsafe Condition

High friction of the bearing in the roller of the NLG Door Uplock Bracket Assembly causes increased resistance in the mechanical system that unlocks the NLG doors, potentially leading to NLG up landings.

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Required Actions

Modify the NLG door uplock bracket assembly in accordance with Fokker Service Bulletin SBF100-32-143. Ensure that no unmodified spare NLG door uplock bracket assembly is installed as a replacement part after 18 months from the effective date, unless modified in accordance with Fokker Component Service Bulletin D76501-32-17.

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

Compliance Time

Within 4,000 flight hours after the effective date

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Affected Aircraft

Fokker Model F.28 Mark 0070 and 0100 airplanes, all serial numbers, certificated in any category.

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

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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