NTSB CHI83LA272 — 1983-06-21 · MILWAUKEE, Wisconsin, United States

Aircraft involved

N980Z Douglas DC-9-30 Serious

Factual narrative

A JETWAY COLLAPSED AS PASSENGER LOADING COMMENCED. THE DRIVE GEAR FAILED & OIL WAS FOUND TO BE CONTIMINATED WITH WATER. HEAT HAD TRANSFERRED TO THE WORM GEAR WHICH WAS MISALIGNED & WAS NOT MANUFACTURED FOR ACFT USE SPECIFICATIONS. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1983_CHI83LA272.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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Related research

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NASA NTRS 2011 · Reprint (Version printed in journal) Predicted airframe noise levels for certification flights

A correction is presented for a previously published inconsistency in predicted airframe noise values, which were based on approach velocities lower than those required for FAA certification.