Aircraft Accident/Incident Report

Reno, Nevada 89502
Monday, June 29, 1998 12:02 PDT

NTSB Narrative Summary Released at Completion of Accident

The aircraft experienced an uncontained engine failure of the number 2 engine. The pilot returned to the airport and landed. The FAA inspector who examined the aircraft reported that there was a hole approximately 2 to 3 inches in diameter through the turbine section, and the fuselage had about seven puncture holes. The side window had seven holes through it and the pressure vessel had been punctured. The first and third stage turbine disks were not located, nor was the turbine bearing, turbine bearing carrier assembly, aft main shaft section, aft main shaft nut, and turbine bearing scavenge pump.

NTSB Probable Cause Narrative

The failure and separation of the first and third stage turbine disks for undetermined reasons.

Event Information

Type of Event Incident
Event Date 6/29/1998
Event Day of the Week Monday
Time of Event 1202
Event Time Zone Pacific Daylight Time
Event City RENO
Event State NEVADA
Event Country --
Zipcode of the event site 89502
Event Date Year 1998
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1156 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID RNO
Elevation of weather observation facility 4412
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Unknown
Wind Speed (knots) 15
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5013
NTSB Notification Source --
NTSB Notification Date Jun 30 1998 12:00AM
NTSB Notification Time 1030
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:32AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N520CS
NTSB Number LAX98IA218
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Aero Commander
Aircraft Model 681B
Aircraft Series Identifier 681B
Aircraft Serial Number 6061
Certified Max Gross Weight 9400
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Apr 25 1998 12:00AM
Airframe hours since last inspection 44
Airframe Hours 8060
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BRS SERVICES INC
Aircraft Owner Street Address 334 SUNNYSIDE AVENUE
Aircraft Owner City VISALIA
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 93277
Operator is an individual? --
Operator Name MEDIC AIR
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 659 SOUTH ROCK BLVD
Operator City RENO
Operator State NV
Operator Country
Operator Zip code 89502
Operator Code MCIA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Positioning
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code RNO
Departure City
Departure State
Departure Country
Departure Time 1130
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code 210
Destination City QUINCY
Destination State CA
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight Yes
Medical Flight Medical Emergency