# Accident 20070104000149A: Hughes 369D, Lyman, WA, January 4, 2007

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 4, 2007, 12:55 local time
- Place: Lyman, WA
- Damage: Substantial damage
- Phase of flight: Hovering
- Operating rules: Rotorcraft external load (Part 133)
- Operator: GHZL
- Location: 48.4472° N, 122.0536° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=48.4472&lon=-122.0536&mi=10
- Aircraft: N1088G (not matched to a registry record)
- Reported make and model: HUGHES 369D
- Reported engine: ALLSN 250C20B
- Fatal injuries: 0
- Pilot flight hours: 20,650 total, 20,484 in this make and model, 200 in the last 90 days
- NTSB investigation: [NTSB SEA07LA041](https://openairdocs.org/ntsb/SEA07LA041) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20070104000149A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) ON 01/04/07, AT APPROXIMATELY 1255 PST, A HUGHES 369D HELICOPTER, N1088G, OWNED AND OPERATED BY THE PILOT ^PRIVACY DATA ^ OF HI LINE HELICOPTERS, EXPERIENCED A LOSS OF POWER AS IT WAS COMING TO A HOVER WHILE PERFORMING EXTERNAL LOAD WORK (SLINGING SHAKE BOLTS) IN SNOWING CONDITIONS. THE AIRCRAFT DROPPED VERTICALLY APPROX. 130' CRASHING ONTO A STUMP IN THE CLEAR CUT AREA THE AIRCRAFT WAS WORKING. THE AIRCRAFT RECEIVED SUBSTANTIAL DAMAGE, THE PILOT WAS SERIOUSLY INJURED. AFTER THE ACCIDENT THE PILOT STATED, WHILE MANEUVERING THE AIRCRAFT HE SAW A LARGE AMOUNT OF SNOW AND ICE SLIDE FROM THE FRONT OF THE CANOPY BACK INTO THE AIR INLET AREA AND THE ENGINE FLAMED OUT. DURING THE ON SITE ACCIDENT INVESTIGATION INSPECTORS FROM THIS OFFICE RECORDED THE POSITION OF THE ENGINE ANTI-ICE LEVER IN THE OFF POSITION. PHONE CONVERSATION WITH THE PILOT AND THIS OFFICE ON 01/10/2007, THE PILOT STATED HE HAD THE ENGINE ANTI-ICE WAS ON, APPROX. 25 GALS. OF FUEL, AND FLOWN APPROX. 5 TO 8 MINUTES ON THE FUEL LOAD BEFORE THE ACCIDENT. AIRCRAFT FLIGHT MANUAL LIMITATIONS PERMITS FLIGHT OPERATIONS IN FALLING AND OR BLOWING SNOW WHEN THE AUTO REIGNITION AND ENGINE EPO IS INSTALLED AND WORKING. N1088G WAS IN COMPLIANCE WITH THIS LIMITATION.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB SEA07LA041](https://openairdocs.org/ntsb/SEA07LA041), Jan 4, 2007: Hughes 369D (N1088G), Lyman, WA, substantial damage. Probable cause: The pilot's intentional flight into adverse weather conditions, which resulted in a loss of engine power during hover due to snow and ice ingestion. Factors associated with the accident are the…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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