19890928036999A

Accident · Substantial damage

FAA accident report · Hiller UH-12E · Hudsonville, MI · September 28, 1989

Date: September 28, 1989 · 07:45 local
Place: Hudsonville, MI
Phase of flight: Climb
Operating rules: Agricultural (Part 137)
Operator: BYRG
Damage: Substantial damage
Aircraft: N4028T
NTSB investigation: NTSBCHI89DEM09
Reported as: Hiller UH12E
Reported engine: Lycoming VO540C2A
Fatal injuries: 0
Pilot’s flight hours: 8,900 total220 in this make and model120 in the last 90 days

N4028TRegistration cancelled Jun 10, 1999 · Hiller UH-12ES/N 5097 Airframe modelHiller UH-12E

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry 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.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Vibration on climbout, main rotor severed tailboom. Crashed nose down. Main rotor torsion pins broke. Prior cracks.

As the FAA filed it

VIBRATION ON CLIMBOUT, MAIN ROTOR SEVERED TAILBOOM. CRASHED NOSE DOWN. MAIN ROTOR TORSION PINS BROKE. PRIOR CRACKS.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB CHI89DEM09Accident · Minor injuriesFinal reportHudsonville, MIThe fatigue failure of one of the tension-torsion pins.Sep 28, 1989 · Substantial damage

Other reports on N4028T · 2

Matched to the same aircraft by N-number and date.

Accident 19980602012139AFcd/Prec Ldg From Cruise · Deleaplaine, ARAcft experienced engine problems, pilot made emerg landing in the field, broke the skid, main rotor struck the grou (.4)the helicopter was traveling in an easterly direction at an airspeed of 60 knots, while maintaining a constant 5 foot clearance over the…Jun 2, 1998 · Substantial damage Incident 19940620029349IAerial Taxi, Other Helicopter · Arcadis, LATried to hover taxi with fuel hose attached to fuel tank. Made hard landing.Jun 20, 1994 · Minor damage