NTSB CAROL · Event
Event MKC76AK078
Registry · N4055Q
FAA Aircraft Registry record.
Make / Model
ROBINSON HELICOPTER R44
TCDS
H11NM · ROBINSON HELICOPTER CO
Seats / Engines
4 seats · 1 engine
ADS-B equipped
Yes — Mode-S A4C24A
Registrant of record
AEROGLYPHS RAVEN ONE LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Historical record (pre-1982)
NTSB recorded this accident in the pre-1982 coded-field schema — structured fields rather than free-text narrative. Decoded codes use established NTSB single-letter taxonomies; cause factors remain verbatim pending the Form 6120.4 codebook lookup.
Aircraft
CESSNA 402 · N4055Q
Damage
Substantial
Craft type
Airplane
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
B0
Operator type
E
Airport
HAYS MUNICIPAL
Kind of flying
CI
Weather at impact
Sky
SCATTERED-ABOVE 1000 FEET
Aircraft history
Serial number
0000402-0155
Total time
6,282 hrs
Pilot
Certificate
DA (DA)
Total hours
4,025
Age
28
Probable cause (from PRE1982.MDB)
UCK AND FELL INTO MAN HOLE ADJACENT TO TAXIWAY.
Investigator remarks
PLT FAILED MAINT DIR CONTROL TAXIING.RT GEAR STR
Cause factors
- 64/C/79 C PILOT IN COMMAND FAILED TO MAINTAIN DIRECTIONAL CONTROL Cause
Decoded against the NTSB Form 6120.4 cause-factor codebook (ct_Pre1982 table). Each row shows the raw triplet, modifier (Cause / Factor / etc.), category, and specific code.
Source: NTSB pre-1982 historical archive. Docket
3 3019.
Source file
NTSB_1976_3_3019.txt.
Modern CAROL record on
data.ntsb.gov ↗.
Beyond the agency record
Search this event elsewhere.
Pre-filled searches into the sources where news + community discussion of aviation events lives. External sources are reported, not agency. Treat them as signal that something happened, not as fact about what happened.
Entity-clustered aviation events in the press — last 24 hr + 30-day archive.
Official agency record + docket.
Investigative docket: factual reports, photos, transcripts.
Long-running aviation incident database (Flight Safety Foundation).
Community NTSB synthesis blog — often has photos and witness reports.
Gold-standard aviation incident blog.
Aviation industry news search.
GA pilot forum — informed but rumor-prone.
GA pilot subreddit search.
Tail-number page — flight history (free tier limited).
AOPA Air Safety Institute search.
Mainstream press coverage. Recent events only.
Privacy-preserving news search.
External links open in a new tab. We don't ingest their content; we deep-link search queries.
Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
Browse the full corpus — academia portal ↗