Accident Details
Probable Cause and Findings
The pilot’s improper preflight inspection, during which the left wing fuel sump drain was moved to and left in the open and locked position, allowing for fuel to drain during the flight and resulting in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s failure to follow the emergency checklist by not switching fuel tanks following the loss of engine power.
Aircraft Information
Registered Owner (Current)
Analysis
On May 11, 2023, about 1915 central daylight time, a Piper PA-28-180, N1347T, was substantially damaged when it was involved in an accident near Selma, Alabama. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight.
The pilot reported that he performed a preflight inspection and observed 48 gallons of fuel in the fuel tanks before departing St. Clair County Airport (PLR), Pell City, Alabama. He departed PLR using the right wing fuel tank and about 30 minutes into the flight to Monroeville, Alabama, he switched to the left wing fuel tank. About 25 minutes later, the airplane engine “slow(ed) to what appeared to be an idle power setting.” He turned the fuel pump on, increased mixture to full rich, and turned on the carburetor heat; however, the engine did not regain power. The airplane continued to descend and the pilot attempted a forced landing to a field; however, the airplane impacted an area of pine trees before the field. The pilot stated that the engine may have “quit” at some point before the impact and he had not attempted to switch fuel tanks when attempting to restore engine power.
Examination of the wreckage revealed that the main wreckage came to rest on its left side, resting on the outboard portion of the left wing, which had fractured at the wing root. The right wing was fractured at the wing root and resting on top of the left wing. The fuselage, empennage, and wings sustained substantial damage.
A postaccident examination of the engine did not reveal evidence of any mechanical failures or malfunctions that would have precluded normal operation. Compression and suction were achieved on all cylinders. The throttle and mixture cables remained attached at the carburetor and moved in conjunction with movement of the controls in the cockpit. Borescope examination of the cylinders revealed no anomalies other than oil in the Nos. 2 and 4 cylinders. The spark plugs were visually examined and appeared normal. Both magnetos were tested and produced spark at all towers. A small amount of fuel was present in the carburetor float bowl.
Examination of the airframe revealed that the fuel selector was positioned to the left tank. The left wing fuel sump drain was in the open and locked position and the left wing fuel tank was mostly intact and void of fuel. The right wing fuel tank, with its fuel sump drain in the closed position, was breached and void of fuel. Review of a fuel receipt revealed that 20.26 gallons of fuel were purchased on May 9, 2023, at PLR.
Review of a photo provided by the owner of the airplane that was taken “minutes after” the accident revealed fuel staining on the left flap aft of the fuel drain.
The first items in the emergency checklist for Engine Power Loss In-Flight in the manufacturer’s Owner’s Handbook are:
1. Fuel Selector – switch to another tank containing fuel
2. Electric Fuel Pump- ON
3. Mixture – Rich
4. Carburetor Heat – On
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# ERA23LA232