San Jose Municipal Airport
Aircraft Accident/Incident Report

San Jose, California 95117
Wednesday, January 20, 1982 10:00 PST

NTSB Narrative Summary Released at Completion of Accident

THE AIRCRAFT WAS DEPARTING ON AN IFR FLIGHT FROM SAN JOSE, CA TO CHESTER, CA. SHORTLY AFTER LIFTOFF AT AN ALTITUDE OF ABOUT 50 FEET AGL, THE PILOT HEARD A LOUD BANG AND THE RIGHT FRONT SEAT PASSENGER INFORMED HIM THAT THE RIGHT PROPELLER WAS MISSING. THE PILOT SECURED THE ENGINE AND CIRCLED THE AIRPORT TO AN UNEVENTFUL LANDING. THE PROPELLER HUB AND TWO BLADES WERE FOUND ON THE RUNWAY: THE THIRD BLADE WAS NEVER LOCATED. INSPECTION REVEALED A 3 TO 4 INCH PROGRESSIVE FATIGUE FRACTURE ON THE HUB. AIRCRAFT RECORDS INDICATED THAT THE HUB HAD ABOUT 3421 HOURS TOTAL TIME, AND 707 HOURS SINCE OVERHAUL.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Incident
Event Date 1/20/1982
Event Day of the Week Wednesday
Time of Event 1000
Event Time Zone Pacific Standard Time
Event City SAN JOSE
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95117
Event Date Year 1982
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport SAN JOSE MUNICIPAL
Event Location Nearest Airport ID SJC
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Full
Investigator's weather source Unknown
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Unknown
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 0
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5005
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N74HP
NTSB Number LAX82IA044
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-31-350
Aircraft Series Identifier PA-31-350
Aircraft Serial Number 7305121
Certified Max Gross Weight 7045
Aircraft Category Airplane
Aircraft Registration Class Unknown
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 8
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 34
Airframe Hours 3422
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name HEWLETT PACKARD
Aircraft Owner Street Address 3000 HANOVER
Aircraft Owner City PALO ALTO
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name HEWLETT PACKARD
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 3000 HANOVER
Operator City PALO ALTO
Operator State CA
Operator Country
Operator Zip code
Operator Code
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) Executive/Corporate
Second Pilot on Board Unknown
Departure Point Same as Event Yes
Departure Airport Code SJC
Departure City SAN JOSE
Departure State CA
Departure Country
Departure Time 1000
Departure Time Zone
Destination Same as Local Flt --
Destination Airport Code 005
Destination City CHESTER
Destination State CA
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 18 2002 4:49PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 12
Runway Length 4418
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --