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DEN81FTC25

1981-09-27 · GILLETTE, Wyoming, United States · Minor · 1 aircraft · Status: Completed

N919X has since been reassigned. It is now registered to a different aircraft (AEROPRO CZ S R O A240, built 2021), which was not involved in this event.

Aircraft involved

Historical record (pre-1982 coded fields)

Aircraft
BEECH H18S · N919X
Damage
Substantial
Craft type
Airplane
Classification
Accident
Light condition
Dusk
Weather
VMC
Phase of flight
EY
Operator type
Business
Airport
GILLETTE CAMPBELL
Kind of flying
B0

Weather at impact

Sky
OVERCAST
Wind
170° / 14 kt
Temp
58° F

Aircraft history

Serial number
000000000657
Total time
5,500 hrs

Pilot

Certificate
GA (GA)
Total hours
6,000
Age
32

Probable cause (from PRE1982.MDB)

AT APRX 0.010. NR 5 EXH VALVE SPRING BROKEN.

Investigator remarks

NR 5 EXH VALVE 0.250 CLEARANCE,ALL OTHERS NORMAL

Cause factors

  • 74/C/AF C
    POWERPLANT VALVE ASSEMBLIES Cause
  • 88/C/47 C
    MISCELLANEOUS ACTS,CONDITIONS IMPROPER ALIGNMENT/ADJUSTMENT Cause
  • 88/C/95 C
    MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause

Decoded against the NTSB Form 6120.4 cause-factor codebook (ct_Pre1982 table).

Source: NTSB pre-1982 historical archive. Docket 3 2946. Source file NTSB_1981_3_2946.txt. Modern CAROL record on data.ntsb.gov ↗.

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