- Date
- May 2, 2014, 17:00 local (22:00 UTC)
- Place
- New Braunfels, TX
- Injuries
- 4 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N7308PPiper PA 24-250
- Defining event
- Enroute-cruise: Fuel exhaustion
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 5, 2014
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA FSDO
- FAA report
- 20140502006279A
- Case key
- 89160
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The loss of engine power due to fuel exhaustion, which resulted from the pilot's inadequate preflight planning and inflight decision making.
Findings · 3
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The pilot with three passengers planned to depart and return on a cross-country flight. The pilot stated that the airplane's left fuel tank was filled to an inch below the collar, and the right fuel tank was filled to two inches below the collar. He estimated that the airplane had 40-45 gallons of fuel on board, with a planned en route time of 57 minutes, and about a 10 knot tailwind. Once at a cruise altitude of 7,500 feet, he set the manifold pressure at 21 inches and engine rpm at 2,300 for a fuel burn of 12.3 gallons/hr per the pilot operating handbook. The pilot reported for the return leg he again visually checked the fuel level in each tank. He estimated 12-15 gallons in the left tank and 10 in the right, for a total of 22-25 gallons. The pilot added that fuel burn seemed normal and he decided not to add fuel, he also stated that estimations are not an accurate science and that a fuel stick was not provided to confirm the fuel level. After departing for the return flight, he switched fuel tanks from the left side to the right side. About 15 minutes later, the pilot noticed a reduction in power and switched back to the left side fuel tank. Engine power was restored, and the pilot stated that he did not feel that the fuel had been exhausted from the right side based on his calculations. A few minutes later, the engine lost power and the pilot preformed a forced landing to a construction site. A post-crash examination of the airplane revealed substantial damage to the airplane's fuselage and left wing during the forced landing. Additionally, the fuel tanks were empty and were not breached in the accident.
Factual narrative
The pilot with three passengers planned to depart and return on a cross-country flight. The pilot stated that the airplane's left fuel tank was filled to an inch below the collar, and the right fuel tank was filled to two inches below the collar. He estimated that the airplane had 40-45 gallons of fuel on board, with a planned en route time of 57 minutes, and about a 10 knot tailwind. Once at a cruise altitude of 7,500 feet, he set the manifold pressure at 21 inches and engine rpm at 2,300 for a fuel burn of 12.3 gallons/hr per the pilot operating handbook. The pilot reported for the return leg he again visually checked the fuel level in each tank. He estimated 12-15 gallons in the left tank and 10 in the right, for a total of 22-25 gallons. The pilot added that fuel burn seemed normal and he decided not to add fuel, he also stated that estimations are not an accurate science and that a fuel stick was not provided to confirm the fuel level. After departing for the return flight, he switched fuel tanks from the left side to the right side. About 15 minutes later, the pilot noticed a reduction in power and switched back to the left side fuel tank. Engine power was restored, and the pilot stated that he did not feel that the fuel had been exhausted from the right side based on his calculations. A few minutes later, the engine lost power and the pilot preformed a forced landing to a construction site. A post-crash examination of the airplane revealed substantial damage to the airplane's fuselage and left wing during the forced landing. Additionally, the Federal Aviation Administration inspector reported that the fuel tanks were empty and were not breached in the accident.
Aircraft
- Registration
- N7308P
- Reported as
- Piper PA 24-250 (250)
- Category
- Airplane
- Serial number
- 24-2483
- Built
- 1961
- Engine
- Lycoming 0-540 SERIES, 250 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Anderson Aviation
- Registered owner
- Anderson Thomas DBA
- Airworthiness certificate
- Standard, Normal
- Departed
- KDWH · Houston, TX
- Destination
- 1T8 · Bulverde, TX
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 48
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Last flight review
- July 23, 2013
- Seat
- Left
- Restraint
- Lap only
- Flight hours
- 397 total · 7.5 in this make and model · 345 as pilot in command · 10.3 in the last 90 days · 6.1 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 290° at 5 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 11,000 ft broken
- Temperature
- 81 °F, dew point 30 °F
- Altimeter
- 29.95 inHg
- Observed at
- KBAZ, 5 nm away
Docket · 2
The files NTSB released with the investigation on May 21, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 972 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N7308P · 1
Matched to the same aircraft by N-number and date.