20130321003549A

Accident · Substantial damage

FAA accident report · Piper PA-23-250 · Perry, FL · March 21, 2013

Date
March 21, 2013 · 08:46 local
Place
Perry, FL
Phase of flight
Cruise/Level Flight
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N625SR
NTSB investigation
NTSBERA13LA179
Reported as
Piper PA-23-250
Reported engine
Lycoming TI0-540 series
People aboard
1
Fatal injuries
0
Other injuries
1
Pilot’s certificates
Airline transport, flight instructor
Pilot’s flight hours
29,125 total236 in this make and model111 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

The pilot reported losing engine power shortly after switching from the inboard tanks to the outboard (main) tanks starting with the right engine then the left.

Upon arrival at the scene the pattern of tree damage the aircraft approached from the west and came to rest facing north.

The law enforcement officers reported an odor consistent with aviation gasoline on their arrival but was not present at the time of the investigation.

The left wing tip/main fuel tank separated the aircraft and lay 20 feet to the west of the aircraft.

The landing gear was not extended. Both propellers were feathered with the propeller blades at a 3 o'clock and 9 o'clock (horizontal) position. The left propeller has one blade bent forward slightly.

Propeller to crankshaft continuity checks were confirmed but cylinder compression checks were hampered by the fallen trees and underbrush.

Gained access and removed lines from the electric fuel boost pumps and found fuel present on both left and right sides. Disconnected fuel lines at both engine driven fuel pump and found fuel present. When lines were removed from the engine flow dividers on top of the engines, the left engine flow divider contained fuel while the right was dry.

Continuity checks of the lt and rt throttle control to fuel servos,

Lt and rt mixture control to fuel servos and lt and rt fuel selectors to fuel shut-off valves. All connection were confirmed.

Magnetos and associated wiring were found intact and all magneto switches were in the "on" position.

The left engine oil level was just below 12 quarts and the right showed 3 quarts.

As the FAA filed it

THE PILOT REPORTED LOSING ENGINE POWER SHORTLY AFTER SWITCHING FROM THE INBOARD TANKS TO THE OUTBOARD (MAIN) TANKS STARTING WITH THE RIGHT ENGINE THEN THE LEFT.

UPON ARRIVAL AT THE SCENE THE PATTERN OF TREE DAMAGE THE AIRCRAFT APPROACHED FROM THE WEST AND CAME TO REST FACING NORTH.

THE LAW ENFORCEMENT OFFICERS REPORTED AN ODOR CONSISTENT WITH AVIATION GASOLINE ON THEIR ARRIVAL BUT WAS NOT PRESENT AT THE TIME OF THE INVESTIGATION.

THE LEFT WING TIP/MAIN FUEL TANK SEPARATED THE AIRCRAFT AND LAY 20 FEET TO THE WEST OF THE AIRCRAFT.

THE LANDING GEAR WAS NOT EXTENDED. BOTH PROPELLERS WERE FEATHERED WITH THE PROPELLER BLADES AT A 3 O'CLOCK AND 9 O'CLOCK (HORIZONTAL) POSITION. THE LEFT PROPELLER HAS ONE BLADE BENT FORWARD SLIGHTLY.

PROPELLER TO CRANKSHAFT CONTINUITY CHECKS WERE CONFIRMED BUT CYLINDER COMPRESSION CHECKS WERE HAMPERED BY THE FALLEN TREES AND UNDERBRUSH.

GAINED ACCESS AND REMOVED LINES FROM THE ELECTRIC FUEL BOOST PUMPS AND FOUND FUEL PRESENT ON BOTH LEFT AND RIGHT SIDES. DISCONNECTED FUEL LINES AT BOTH ENGINE DRIVEN FUEL PUMP AND FOUND FUEL PRESENT. WHEN LINES WERE REMOVED FROM THE ENGINE FLOW DIVIDERS ON TOP OF THE ENGINES, THE LEFT ENGINE FLOW DIVIDER CONTAINED FUEL WHILE THE RIGHT WAS DRY.

CONTINUITY CHECKS OF THE LT AND RT THROTTLE CONTROL TO FUEL SERVOS,

LT AND RT MIXTURE CONTROL TO FUEL SERVOS AND LT AND RT FUEL SELECTORS TO FUEL SHUT-OFF VALVES. ALL CONNECTION WERE CONFIRMED.

MAGNETOS AND ASSOCIATED WIRING WERE FOUND INTACT AND ALL MAGNETO SWITCHES WERE IN THE "ON" POSITION.

THE LEFT ENGINE OIL LEVEL WAS JUST BELOW 12 QUARTS AND THE RIGHT SHOWED 3 QUARTS.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.