Mammoth Lakes Airport
Aircraft Accident/Incident Report

Mammoth Lakes, California 93546
Saturday, May 24, 2014 15:00 PDT

NTSB Narrative Summary Released at Completion of Accident

On May 24, 2014, at 1500 Pacific daylight time, a Cessna 182P airplane, N21048, experienced a total loss of engine power and executed a forced landing onto a dirt road on the south side of Mammoth Lakes, California. The airplane sustained substantial damage to the firewall during the landing sequence. The airplane was registered to, and operated by, the commercial pilot under the provisions of 14 Code of Federal Regulations, Part 91. The pilot and single passenger were not injured. Visual meteorological conditions prevailed for the flight and a visual flight rules flight plan was filed. The flight originated at Bishop, California. The pilot stated that while en route to Los Banos, on V231, 10 miles west of RBRTS intersection he lost the number 1 engine cylinder and then quickly experienced a total loss of engine power. He informed air traffic control (ATC) of the situation and diverted southeast towards Yosemite Mammoth Airport, which was 10 miles away. He realized that he was not going to make it to the airport. He turned the airplane into the wind and landed on a dirt road on the south side of the town of Mammoth Lakes. During the landing the right main landing gear collapsed and the engine firewall was damaged.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 5/24/2014
Event Day of the Week Saturday
Time of Event 1500
Event Time Zone Pacific Daylight Time
Event City Mammoth Lakes
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93546
Event Date Year 2014
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 373746N
Event Location Longitude 1185743W
Event Location Airport Mammoth Lakes
Event Location Nearest Airport ID KMMH
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 6
Degrees magnetic from airport 270
Airport Elevation 7135
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1455 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID KMMH
Elevation of weather observation facility 7135
Distance of event from weather observation facility (units?) 6
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 11000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) -5
Wind Direction (degrees magnetic) 20
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 14
Altimeter Setting at event time (in. Hg) 30.15
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) --
NTSB Notification Source FAA Regiona Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record May 27 2014 6:22PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N21048
NTSB Number WPR14LA208
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 182P
Aircraft Series Identifier --
Aircraft Serial Number 18261381
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft --
Number of Engines --
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name CIANCI PAUL JR
Aircraft Owner Street Address --
Aircraft Owner City SAN JOSE
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 951351141
Operator is an individual? No
Operator Name CIANCI PAUL JR
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City SAN JOSE
Operator State CA
Operator Country USA
Operator Zip code 951351141
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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 No
Departure Point Same as Event No
Departure Airport Code KBIH
Departure City Bishop
Departure State CA
Departure Country USA
Departure Time --
Departure Time Zone --
Destination Same as Local Flt --
Destination Airport Code KLSN
Destination City Los Banos
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 27 2014 6:22PM
User who most recently changed record coos
Since inspection or accident --
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --