CHI83IA209

NTSB incident investigation · Aero Commander 500B · Youngstown, OH · May 6, 1983

Incident · No injuriesIncident investigationFinal report
Date
May 6, 1983, 00:55 local (04:55 UTC)
Place
Youngstown, OH
Injuries
1 uninjured
Damage
Minor damage
Phase of flight
Enroute
Aircraft
N6178XAero Commander 500B
Weather
Visual (VMC) · Night/dark
Status
Completed
Report
Approved by Office Director
FAA report
19830506041309I
Case key
12046

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionCruise - normal
Propeller system/accessories,hub - fatigueCause
Propeller system/accessories,blade - separation
Engine assembly - vibration
Electrical system,generator - overload
Electrical system,generator - separation
Propeller feathering - performedPilot in command
Precautionary landing - performedPilot in command

Analysis

While cruising at 5000 ft MSL, the plt heard a 'very loud bang' & noted 'very much vibration from the left eng.' He shut down & feathered the left eng & prop. When the eng stopped turning, he noted 1 prop blade was missing. The acft was landed without further incident. An exam revealed that a hartzell model HC-A3VK-2 blade clamp, pn C-3, & a pilot tube on the 3 bladed prop had failed from fatigue. Also, it was noted that the motor mounts broke loose & the generator broke loose & separated. Ultimately, the generator fell on a parked automobile.

Aircraft

Registration
N6178X
Reported as
Aero Commander 500B
Category
Airplane
Serial number
1014-35
Airframe hours
9,741
Engine
Lycoming IO-540-B1A5, 290 horsepower, reciprocating
Damage
Minor damage
Flight
Part 135
Registered owner
Central Airlines Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 1, 1982 · 631 hours before
Departed
TET · Teterboro, NJ
Destination
CAK · Canton-Akron, OH
Flight plan
IFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
54
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
18,000 total · 6,500 in this make and model

Weather

Conditions
Visual (VMC) · Night/dark
Wind
170° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
41 °F, dew point 30 °F
Observed at
YNG

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.