Sept 23, 1985. Weyer's Cave, VA (KSHD). Probably cause was using the VOR instead of the ILS for course guidance.
Gets interesting about page 57/87, probable cause on 61/87.
http://www.airdisaster.com/reports/ntsb/AAR86-07.pdf
Lack of intercom, noise level in cockpit, etc, etc.
28% turnover in the previous year, qualifications of applicants dropping(mid 1980's major airline hiring boom)
40% of candidates failing Dash 8 CA and FO upgrade program. FAA hadn't flown an obervation flight in months, etc, etc.
New Captain(one month), FO had 6 weeks with company. FO had falsified MEL time, had not disclosed previous accidents, fired from previous job, etc, etc.
Mentions non-standard, and non-FAA approved, cockpit configurations. I believe they had 8-9 Beech 99's and had 5 or 6 different cockpit configurations.
VOR/ILS tuning was outboard of FO's seat. Investigators believe FO had VOR, instead of ILS, selected. Noise level, lack of intercom, passengers can hear any cockpit discussion, new Captain, new FO, etc, etc, etc.
Hit 200' below the top of the ridge.