19910808036879I

Incident · Minor damage

FAA incident report · Bell 412 · Gulf Of Mexico, LA · August 8, 1991

Date: August 8, 1991 · 08:00 local
Place: Gulf Of Mexico, LA
Phase of flight: Pwr Off Vert Land/Autorotate
Operating rules: Air taxi and commuter (Part 135)
Operator: ERA3
Damage: Minor damage
Aircraft: N177EH
NTSB investigation: NTSBFTW91IA143
Reported as: Bell 412
People aboard: 13
Fatal injuries: 0
Pilot’s flight hours: 13,900 total8,000 in this make and model118 in the last 90 days

N177EHRegistration cancelled Apr 16, 2004 · Bell 412S/N 33037 Airframe modelBell 412

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.

Experienced loss of tail rotor control. Landed safely in Gulf. Output coupling. Disengaged from sliding coupling.

As the FAA filed it

EXPERIENCED LOSS OF TAIL ROTOR CONTROL. LANDED SAFELY IN GULF. OUTPUT COUPLING. DISENGAGED FROM SLIDING COUPLING.

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 FTW91IA143Incident · No injuriesIncident investigationFinal reportRowan MidlandThe mechanic's failure to assemble the tail rotor drive shaft correctly and the subsequent failure of the tail rotor drive shaft. A factor was the lack of inspection procedures for offshore maintenance.Aug 8, 1991 · No damage