# Accident 19990911026809A: Hiller UH12A, Satartia, MS, September 11, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 11, 1999, 17:30 local time
- Place: Satartia, MS
- Damage: Substantial damage
- Phase of flight: Final Approach
- Operating rules: General operating rules (Part 91)
- Location: 32.6198° N, 90.6291° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=32.6198&lon=-90.6291&mi=10
- Aircraft: N212W, registered now (https://openairdocs.org/aircraft/N212W) (OpenAirDocs)
- Registry model: Hiller UH-12A (registry code 4360104, https://openairdocs.org/model/hiller-uh-12a) (OpenAirDocs)
- Reported make and model: HILLER UH12A
- Fatal injuries: 0
- Pilot flight hours: 7,644 total, 76 in this make and model, 250 in the last 90 days
- NTSB investigation: [NTSB ATL99LA131](https://openairdocs.org/ntsb/ATL99LA131) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990911026809A

## Narrative

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

(.19) ON SEPTEMBER 11, 1999, AT 1800 CENTRAL DAYLIGHT TIME, A HILLER UH-12A HELICOPTER, N212W, COLLIDED WITH THE GROUND WHILE ON APPROACH TO LAND, IN SATARTIA, MISSISSIPPI. THE HELICOPTER WAS OPERATED BY THE COMMERCIAL PILOT UNDER THE PROVISIONS OF TITLE 14 CFR PART 91, AND VISUAL FLIGHT RULES.  VISUAL METEOROLOGICAL CONDITIONS PREVAILED AND NO FLIGHT PLAN WAS FILED FOR THE LOCAL FLIGHT.  THE PILOT WAS NOT INJURED, HOWEVER, THE UNAUTHORIZED PASSENGER RECEIVED MINOR INJURIES AND THE HELICOPTER SUSTAINED SUBSTANTIAL DAMAGE.  THE FLIGHT HAD ORIGINATED ABOUT 1745.  ACCORDING TO THE PILOT, HE DECIDED TO LAND IN AN OPEN AREA NEXT TO A SOY BEAN FIELD TO RELIEVE HIMSELF.  HE STATED THAT DURING THE APPROACH TO THE SELECTED LANDING SITE, HE HEARD A LOUD "BANG" BEHIND HIM FOLLOWED BY THE CONTROL STICK MOVING FORCEFULLY IN ALL DIRECTIONS.  HE STATED THAT HE HAD LOST COMPLETE CONTROL OF THE HELICOPTER RESULTING IN A HARD IMPACT WITH THE GROUND FOLLOWED BY THE HELICOPTER ROLLING ONTO ITS RIGHT SIDE, SUBSTANTIALLY DAMAGING THE HELICOPTER.                                                                                                                                                                 (-23)DURING LANDING APPROACH PILOT STATED HE LOST ALL CYCLIC CONTROL INCLUDING ANTI TORQUE LOSS. A/C LANDED ON SKIDS WITH SIDE MOVEMENT AND ROLLED OVER ON RIGHT SIDE. PILOT ESCAPED WITH NO INJURIES. A PASSENGER HOWEVER SUSTAINED MINOR INJURIES. (.4)THE PILOT DECIDED TO LAND IN AN OPEN AREA NEXT TO A SOYBEAN FIELD DUE TO A PHYSICAL URGENCY.  HE STATED THAT DURING THE APPROACH, A 'LOUD NOISE OCCURRED' AND THE HELICOPTER BECAME 'UNCONTROLLABLE,' WITH THE CONTROL STICK MOVING FORCEFULLY IN ALL DIRECTIONS. UPON IMPACT, THE HELICOPTER ROLLED ONTO ITS RIGHT SIDE, SUSTAINING DAMAGE TO THE MAIN ROTOR BLADES, THE TAIL BOOM, THE SKIDS, AND THE FUSELAGE. EXAMINATION OF THE HELICOPTER DISCLOSED THAT THE FORWARD ENGINE/TRANSMISSION MOUNTS HAD SEPARATED FROM THE AIRFRAME. EXAMINATION OF THE ENGINE MOUNTS, HOWEVER, REVEALED THE FRACTURE SURFACE WAS CONSISTENT WITH OVERSTRESS SEPARATION.

## 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 ATL99LA131](https://openairdocs.org/ntsb/ATL99LA131), Sep 11, 1999: Hiller UH-12A (N212W), Satartia, MS, substantial damage. Probable cause: The pilot's failure to maintain control of the helicopter while on approach which resulted in the uncontrolled collision with the ground. A factor was the pilot's physiological condition.

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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