Aircraft Accident/Incident Report

Fabens, Texas 79838
Wednesday, December 30, 1998 15:05 MST

NTSB Narrative Summary Released at Completion of Accident

About 5 hours 13 minutes into a cross-country flight, the airplane's engine lost power due to fuel exhaustion. During the ensuing forced landing, the airplane touched down on the up-slope of a sand dune. The pilot reported that he 'inspected all 4 fuel tanks following refueling prior to departure.' The pilot further reported that he performed fuel calculations at about 3 hours into the flight using fuel gauge readings, and 'fuel usage [was] estimated at 12 gph.' The operator reported that the airplane's normal fuel consumption was 15 to 18 gallons per hour, and that the airplane's average fuel consumption for its previous two flights was calculated to be 16.27 gallons per hour. The airplane's four fuel tanks held a total of 84 gallons, of which 80 gallons were useable.

NTSB Probable Cause Narrative

The pilot's failure to correctly calculate fuel consumption, which resulted in the loss of engine power due to fuel exhaustion. A factor was the lack of suitable terrain for the forced landing.

Event Information

Type of Event Accident
Event Date 12/30/1998
Event Day of the Week Wednesday
Time of Event 1505
Event Time Zone Mountain Standard Time
Event City FABENS
Event State TEXAS
Event Country --
Zipcode of the event site 79838
Event Date Year 1998
Event Date Month 12
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1451 Mountain Standard Time
Direction of event from weather observation facility (degrees) 320
Weather Observation Facility ID ELP
Elevation of weather observation facility 3956
Distance of event from weather observation facility (units?) 21
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
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) 17
Dew Point at event time (in degress fahrenheit) -1
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Unknown
Wind Speed (knots) 3
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 4763
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 4
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1785
NTSB Notification Source --
NTSB Notification Date Dec 31 1998 12:00AM
NTSB Notification Time 700
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:55AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7724J
NTSB Number FTW99LA056
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-32-260
Aircraft Series Identifier PA-32-260
Aircraft Serial Number 32-1126
Certified Max Gross Weight 3400
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 6
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Aug 14 1998 12:00AM
Airframe hours since last inspection 70
Airframe Hours 4840
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name JOSEPH R. MOCK
Aircraft Owner Street Address 20223 STUEBNER AIRLINE RD
Aircraft Owner City SPRING
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 77379
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
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 No
Departure Point Same as Event No
Departure Airport Code DWH
Departure City SPRING
Departure State TX
Departure Country
Departure Time 1052
Departure Time Zone CST
Destination Same as Local Flt --
Destination Airport Code ELP
Destination City EL PASO
Destination State TX
Destination Country
Specific Phase of Flight Cruise
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 No
Medical Flight --