FTW89DRG06 · Hughes 269C
Hughes 269C · Accident: in flight collision with terrain/water while maneuvering
From No airport to an unrecorded destination
Event
- NTSB case
- FTW89DRG06
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 1 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Hughes 269C
- Aircraft type
- Hughes 269
- Category
- Helicopter
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N58228
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From No airportTo not recorded
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Maneuvering
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- In flight collision with terrain/water
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Pilot in command › Altitude, not maintained
- Pilot in command › Diverted attention
- Pilot in command › Rotor RPM, not maintained
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE PLT WAS FLYING LOW & HERDING ANTELOPE, WHEN THE HELICOPTER IMPACTED THE TERRAIN & WAS DESTROYED. HE WAS STILL CONSCIOUS AFTER THE ACDNT, BUT DIED ABOUT 3 HRS LATER. BEFORE DYING, HE SAID THE ENG HAD LOST POWER; HOWEVER, NO PREIMPACT PART FAILURE OR MALFUNCTION OF THE ACFT OR ENG WAS FOUND THAT WOULD HAVE LED TO A POWER LOSS. AN EXAM OF THE WRECKAGE REVEALED THE HELICOPTER HAD IMPACTED IN A LEFT BANK, NOSE LOW ATTITUDE. ALL 3 MAIN ROTOR BLADES HAD EVIDENCE OF HIGH FLAPPING ANGLES AT IMPACT. TOXICOLOGY CHECKS OF THE PLT'S BLOOD, LIVER & KIDNEY REVEALED THE PRESENCE OF NORDIAZEPAM AT LEVELS OF 0.104 MG/L, 0.846 MG/L & 0.427 MG/L, RESPECTIVELY. THE TOXICOLOGIST RPRTD THE THERAPEUTIC RANGE FOR NORDIAZEPAM IN BLOOD WAS 0.02 TO 0.18 MG/L. NORDIAZAPAM IS A SEDATIVE & CNS DEPRESSANT WHICH IS NOT APPROVED FOR FLYING.
Probable cause
THE PILOT DIVERTED HIS ATTENTION FROM OPERATION OF THE HELICOPTER, FAILED TO MAINTIAN PROPER ROTOR RPM, AND FAILED TO MAINTAIN ALTITUDE (CLEARANCE) ABOVE THE GROUND, WHILE MANEUVERING AT LOW ALTITUDE. A CONTRIBUTING FACTOR WAS HIS IMPAIRMENT FROM USE OF A PRESCRIPTION DRUG (NORDIAZEPAM OR DIAZEPAM), WHICH WAS NOT COMPATIBLE WITH FLYING.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record FTW89DRG06
- Event ID
- 20001213X28311
- Case number
- FTW89DRG06
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: be387642f7c399456fb34c305b79382e55f510e3866d68a52654e5607c439d0a; retrieved 2026-09-21T03:19:21.832Z.