NTSB CAROL · Event
Event FTW83IA084
Registry · N23021
FAA Aircraft Registry record.
Make / Model
NANCHANG CHINA CJ-6A
Seats / Engines
2 seats · 1 engine
ADS-B equipped
Yes — Mode-S A20B38
Registrant of record
SELBY JAMES
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Factual narrative
THE HELICOPTER DEVELOPED A SEVERE VIBRATION WHILE IN FLT. THE PILOT EXECUTED AN EMERGENCY LANDING WITH NO FURTHER ACFT DAMAGE. AN EXAMINATION OF THE ACFT REVEALED THAT THE WALKING BEAM ASSEMBLY LOCATED BETWEEN THE SWASH PLATE AND ROTOR PITCH LINK HAD FAILED. FRACTURING ORIGINATED AT A CORROSION PIT ON A THREAD FLANK. MICROSCOPIC EXAMINATION OF THE THREADS REVEALED THAT LOCAL AREA OF CORROSION PITTING HAD OCCURRED WHERE THE SHOT PEEN BALLS HAD BEEN CONTACTING THE FLANKS OF THE THREADS. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1983_FTW83IA084.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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