ERA17LA006

NTSB accident investigation · Piper PA24 · Hollywood, AL · October 6, 2016

Accident · No injuriesLimited investigationFinal report
Date
October 6, 2016, 10:15 local (15:15 UTC)
Place
Hollywood, AL
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N8560PPiper PA24
Defining event
Enroute-cruise: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report March 18, 2019
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20161006017369A
Case key
94169

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

A failure of the fuel tank selector valve in a partially closed position, which resulted in fuel starvation to the engine and a total loss of engine power.

Findings · 2

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.

Fuel system: fuel selector/shutoff valveAircraft › Aircraft systems · MalfunctionPiper PA-24-260: 1 caseAll aircraft: 176 casesProbable cause
Environmental issuesEnvironmental issues › Physical environment · Contributed to outcomePiper PA-24-260: 1 caseAll aircraft: 24 cases

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 commercial pilot was accomplishing a flight review with his flight instructor seated in the right cockpit seat. Ground operations and the engine run-up were normal. After climbing to 3,000 ft mean sea level, the pilot retarded the throttle and the engine lost total power, with no pressure observed on the fuel pressure gauge. The flight instructor assumed the controls, established best glide speed, and performed a forced landing in a field. After touchdown, the airplane struck an embankment before coming to rest on a dirt road. Examination of the wreckage did not reveal any evidence of a preimpact mechanical malfunction or failure of the engine that would have precluded normal operation. All fuel tanks contained an adequate supply of fuel. However, examination of the fuel tank selector valve revealed that the valve was stuck in the partially closed position, which would have restricted fuel flow to the engine. Moving the tank selector handle did not open the valve.

Factual narrative

On October 6, 2016, about 1015 central daylight time, a Piper PA-24-260, N8560P, was substantially damaged following a total loss of engine power and forced landing near Hollywood, Alabama. The commercial pilot and a flight instructor were not injured. The airplane was operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91 as an instructional flight. Day, visual meteorological conditions prevailed at the time, and no flight plan was filed. The local flight originated from Scottsboro Municipal Airport (4A6), Scottsboro, Alabama, about 1000.The pilot reported that he was accomplishing a flight review and his flight instructor was in the right cockpit seat. Ground operations and the engine run-up were normal. The pilot performed the takeoff and continued on runway heading to 3,000 ft mean sea level. Once level at 3,000 feet, the pilot retarded the throttle to 22-23 inches of manifold pressure. Immediately after retarding the throttle, the engine lost all power. The electric boost pump was turned on; however, the engine did not recover. There was no pressure observed on the fuel pressure gauge. The flight instructor assumed the controls and established best glide speed. A field was chosen for a forced landing and the flight instructor landed the airplane. After touchdown, the airplane struck an embankment before coming to a stop on a dirt road. The pilot and flight instructor exited the airplane and were met by first responders. An inspector with the Federal Aviation Administration responded to the accident site and examined the wreckage. There was structural damage to the wings and the engine firewall. One propeller blade was straight and the other was bent aft. The inspector examined the engine and found no evidence of a mechanical failure or anomaly. Internal engine continuity was confirmed. Compression and suction were observed on all cylinders and valve action was correct. There was an adequate supply of oil in the engine case. All fuel tanks contained an adequate supply of fuel. Examination of the fuel selector valve revealed that the valve was stuck in the partially closed position, restricting fuel flow to the engine. Moving the tank selector handle did not open the valve.

Aircraft

Registration
N8560P
Reported as
Piper PA24 (260)
Category
Airplane
Serial number
24-4017
Built
1964
Airframe hours
4,076
Engine
Lycoming IO-540-D4A5, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Departed
4A6 · Scottsboro, AL
Destination
4A6 · Scottsboro, AL
Airport
4A6 · Scottsboro Municipal
Equipment
Stall warning system

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
47
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
946 total · 638 in this make and model
Role
Flight instructor
Age
73
Injuries
None
Certificates
Airline transport, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
December 13, 2015
Seat
Right
Restraint
3-point
Flight hours
23,000 total · 100 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
80° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 57 °F
Altimeter
30.17 inHg
Observed at
4A6, 4 nm away

Docket · 5

The files NTSB released with the investigation on December 11, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.7 MB 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.