19880711026589A

Accident · Substantial damage

FAA accident report · Bell 47D1 · Stockbridge, MI · July 11, 1988

Date: July 11, 1988 · 10:10 local
Place: Stockbridge, MI
Phase of flight: Fcd/Prec Ldg From Cruise
Operating rules: Agricultural (Part 137)
Operator: HMIG
Damage: Substantial damage
Aircraft: N12087
NTSB investigation: NTSBCHI88DEC05
Reported as: Bell 47D1
Reported engine: Franklin 6V4200C32
People aboard: 1
Fatal injuries: 0
Pilot’s flight hours: 12,877 total12,697 in this make and model135 in the last 90 days

N12087Registered now · Bell 47D1S/N 734 Airframe modelBell 47D1 Engine modelFranklin 6A4200 seriesReciprocating

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.

Loud noise vibration and loss of cyclic during spray run. Crash landed. AN17432 bolt missing causing control loss.

As the FAA filed it

LOUD NOISE VIBRATION AND LOSS OF CYCLIC DURING SPRAY RUN. CRASH LANDED. AN17432 BOLT MISSING CAUSING CONTROL LOSS.

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 CHI88DEC05Accident · No injuriesFinal reportStockbridge, MIThe plt was spraying an onion field when he noted a vibration, followed by a loud noise & severe shaking of the helicopter. He attempted a forced landing, but the helicopter was unresponsive to cyclic & collective inputs. Subsequently, the right skid dug into…Jul 11, 1988 · Substantial damage