Aircraft Accident/Incident Report

Palm Springs, California 92262
Friday, July 12, 1996 18:10 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that during the departure climb about 2,500 feet msl, there was a loud bang, followed by severe airframe vibration. The pilot closed the throttle and pulled the mixture control into idle cutoff. The pilot established a glide and made an uneventful off-airport landing. Postaccident examination revealed that about 20 inches of one propeller blade was missing. The remaining propeller blade and hub was sent the Safety Board's Materials Testing Laboratory for analysis. The analysis report documented a crack progression starting at the blade's trailing edge and migrating forward through about 50 percent of the chord. At that point the blade failed from overload. The report indicated that a mechanical type damage had occurred at the trailing edge crack initiation point. According to the records, at the time of this accident the engine and the propeller had accumulated 307.24 hours since overhaul.

NTSB Probable Cause Narrative

the failure of a propeller blade as a result of undetected in-service mechanical damage that caused a stress point that progressed to a point of failure.

Event Information

Type of Event Accident
Event Date 7/12/1996
Event Day of the Week Friday
Time of Event 1810
Event Time Zone Pacific Daylight Time
Event City PALM SPRINGS
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92262
Event Date Year 1996
Event Date Month 7
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 Pilot
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 Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 38
Dew Point at event time (in degress fahrenheit) --
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) --
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) 1644
NTSB Notification Source --
NTSB Notification Date Oct 10 1996 12:00AM
NTSB Notification Time 1000
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 10:13AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5388L
NTSB Number LAX96LA347
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-28-180
Aircraft Series Identifier PA-28-180
Aircraft Serial Number 28-4696
Certified Max Gross Weight 2400
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jun 12 1996 12:00AM
Airframe hours since last inspection 50
Airframe Hours 4439
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name KARL G. SCHOTT
Aircraft Owner Street Address 32030 VIEWLAKE LN.
Aircraft Owner City WESTLAKE VILLA
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 91361
Operator is an individual? --
Operator Name SUN AIR AVIATION, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 50 DURLEY AVENUE
Operator City CAMARILLO
Operator State CA
Operator Country
Operator Zip code 93010
Operator Code
Owner has at least one certificate None
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) Personal
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code UDD
Departure City BERMUDA DUNES
Departure State CA
Departure Country
Departure Time 1805
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code CMA
Destination City CAMARILLO
Destination State CA
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
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 No
Medical Flight --