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AD 90-06-18 R1

Historical
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Airworthiness directive · Wing Landing Gear Inspection · Boeing 747 Series (all)

FAA copy· on FAA DRS
AboutSource files 1
Effective
August 17, 1990
Superseded by
AD2001-17-25
Model
747 Series (all)
Product
Aircraft · Large airplane
Amendment
39-6706
Docket
89-NM-105-AD

Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed August 7, 2025.

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Registered aircraft

No registered aircraft matched this AD’s modelsForeign aircraft aren’t included, and ADs on propellers and appliances aren’t matched by model.

NTSB investigations that cite this AD · 1

Their narratives or probable cause name AD 90-06-18, often to say whether the aircraft complied with it.

NTSB FTW02IA061Incident · No injuriesIncident investigationFinal reportBoeing 747-228F · Houston, TXStress corrosion cracking (SCC) of the aft trunnion outer cylinder. A factor was the inadequate inspection criteria of the Airworthiness Directive to detect pre-existing SCC.Jan 3, 2002 · F-GCBG · Minor damage