ATL91IA050

NTSB incident investigation · Piper PA-60-600 · Cochran, GA · February 5, 1991

Incident · No injuriesIncident investigationFinal report
Date
February 5, 1991, 02:10 local (07:10 UTC)
Place
Cochran, GA
Injuries
1 uninjured
Damage
Minor damage
Aircraft
N6070DPiper PA-60-600
Weather
Visual (VMC) · Night/dark
Status
Completed · report May 5, 1993
Report
Approved by Office Director
FAA report
19910205004109I
Case key
8344

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.

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Probable cause

Failure of the right engine shutoff valve which resulted in a complete loss of engine power. The airplane veered off the right side of the runway and the right main landing gear collapsed as a result of the pilots failure to maintain directional control during the landing rollout. Factors in this incident were the dark night, and a loss of hydraulic pressure when the right engine failed.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(partial) - mech failure/malf
Fuel system,fuel shutoff - failure,totalCause
Hydraulic system - pressure too lowFactor
1 engine
Loss of control - on ground/waterLanding - roll
Precautionary landing - not usedPilot in command
Directional control - not maintainedPilot in commandCause
Light condition - dark nightFactor
Main gear collapsedLanding - roll
Landing gear - overload

Analysis

While cruising at 7000 feet the pilot experienced a loss of power on the right engine. The pilot requested assistance from jacksonville center, and was vectored to Cochran airport. The pilot established an approach to the airport but was unable to lower the wing flaps. Apparently, after the landing gear was extended, there was not enough hydraulic pressure available to lower the wing flaps. The only hydraulic pump was installed on the right engine. The pilot lost directional control during the landing rollout, and the airplane veered off the right side of the runway into a ditch. The pilot stated that heavy left braking was used, but failed to correct the rightward drift. According to the flight manual, the pilot should use engine power and braking to maintain directional control during the emergency landing. Examination of the airplane disclosed that the right fuel shutoff valve had failed and fuel was shutoff to the right engine. Additionally, the right wing spar was repaired prior to restoring the airplane to a full airworthy status.

Aircraft

Registration
N6070D
Reported as
Piper PA-60-600
Category
Airplane
Serial number
600677961214
Engine
Lycoming IO-540-S1A5, 290 horsepower, reciprocating
Damage
Minor damage
Fire
Unknown
Flight
Part 135
Operator
Top Flight Inc.
Departed
ATL · Atlanta, GA
Destination
TPA · Tampa, FL
Flight plan
IFR
Airport
48A · Cochran, runway 5, 3,200 × 50 ft, asphalt

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
32
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Flight hours
3,326 total · 300 in this make and model · 3,275 as pilot in command · 100 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/dark
Wind
Calm
Visibility
15 statute miles
Lowest ceiling
25,000 ft overcast
Temperature
-0 °F, dew point -0 °F
Observed at
MCN, 20 nm away

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 N6070D · 1

Matched to the same aircraft by N-number and date.