Tucson Intern Arpt Airport
Aircraft Accident/Incident Report

Tucson, Arizona 85706
Wednesday, October 23, 2013 10:40 MST

NTSB Narrative Summary Released at Completion of Accident

The private pilot, who did not have a multiengine rating, reported that, during takeoff, the airplane’s nose starting turning left; he did not realize that it was due to the left engine losing power. As a result, he did not perform the engine failure emergency procedure. A witness reported hearing one of the engines “misfiring” and subsequently seeing the airplane drift left, roll into a steep left bank, and then impact the ground. Postaccident examination revealed no fuel in the left engine’s fuel strainer and carburetor; the right engine’s fuel strainer and carburetor both contained fuel. Fuel was present in both the left and right wing fuel tanks, and no evidence of fuel contamination was found. The left engine-driven fuel pump’s diaphragm was found to be brittle and cracked in several locations, which resulted in its inability to provide sufficient fuel pressure to maintain engine power during takeoff. No other anomalies were found with the left engine’s fuel system. The electric fuel boost pump switches were both found in the “off” position, indicating that the pilot had not turned them on before takeoff as called for in both the owner’s handbook before takeoff checklist and the before takeoff checklist located on a placard on the instrument panel. If the pilot had turned on the electric fuel boost pumps, the left engine would not have lost power because the electric pump would have compensated for the malfunction of the engine-driven pump.

NTSB Probable Cause Narrative

The pilot’s failure to maintain airplane control during takeoff following the loss of left engine power due to the failure of the left engine-driven fuel pump’s diaphragm. Contributing to the accident was the pilot’s failure to use the electric fuel boost pumps for takeoff in accordance with checklist procedures and to conduct the engine failure emergency procedure.

Event Information

Type of Event Accident
Event Date 10/23/2013
Event Day of the Week Wednesday
Time of Event 1040
Event Time Zone Mountain Standard Time
Event City Tucson
Event State ARIZONA
Event Country --
Zipcode of the event site 85706
Event Date Year 2013
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 320644N
Event Location Longitude 1105560W
Event Location Airport Tucson Intern Arpt
Event Location Nearest Airport ID TUS
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 2643
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1058 Mountain Standard Time
Direction of event from weather observation facility (degrees) 40
Weather Observation Facility ID DMA
Elevation of weather observation facility 2640
Distance of event from weather observation facility (units?) 4
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
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) 29
Dew Point at event time (in degress fahrenheit) -2
Wind Direction (degrees magnetic) 120
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 13
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.97
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 32926
NTSB Notification Source FAA ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jul 1 2014 2:56PM
User who most recently changed record strj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3162P
NTSB Number WPR14LA027
Missing Aircraft Indicator --
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-23-150
Aircraft Series Identifier Apache D
Aircraft Serial Number 23-1094
Certified Max Gross Weight 3501
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats 4
Total number of seats on the aircraft --
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 1 2013 12:00AM
Airframe hours since last inspection --
Airframe Hours 4169
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type Unknown
Aircraft Owner Name James A. Homoki
Aircraft Owner Street Address --
Aircraft Owner City Tucson
Aircraft Owner State AZ
Aircraft Owner Country USA
Aircraft Owner Zipcode 85712
Operator is an individual? Yes
Operator Name James A. Homoki
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Tucson
Operator State AZ
Operator Country USA
Operator Zip code 85712
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 Yes
Departure Airport Code TUS
Departure City Tucson
Departure State AZ
Departure Country USA
Departure Time 1030
Departure Time Zone MST
Destination Same as Local Flt crash at destination city
Destination Airport Code TUS
Destination City Tucson
Destination State AZ
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 31 2014 2:23PM
User who most recently changed record coos
Since inspection or accident Last Inspection
Event Location Runway Number and Location 11R
Runway Length 8408
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --