BFO89FA022

NTSB accident investigation · Beech A60 · Manassas, VA · March 11, 1989

Accident · FatalField investigationFinal report
Date
March 11, 1989, 16:15 local (20:15 UTC)
Place
Manassas, VA
Injuries
5 fatal
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N98DSBeech A60
Weather
Visual (VMC) · Day
Status
Completed · report June 22, 1992
Report
Approved by Office Director
FAA report
19890311003609A
Case key
11454

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

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Probable cause

A loss of aircraft control due to the pilot's failure to maintain minimum engine control speed after a partial loss of power of the left engine for undetermined reasons. The pilot's inexperience in type of aircraft and an over maximum gross weight aircraft were contributing factors.

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 powerTakeoff - initial climb
1 engine
Reason for occurrence undeterminedCause
Loss of control - in flightTakeoff - initial climb
Airspeed(vmc) - not maintainedPilot in commandCause
Lack of total experience in type of aircraftPilot in commandFactor
Aircraft weight and balance - exceededPilot in commandFactor

Analysis

Witnesses reported the acft took off and climbed to about 300 ft while in a wide left turn. According to witnesses, the wings were rocking and erratic engine sounds were noted. The acft was turning downwind when it abruptly pitched down, rolled left until inverted, descended and crash. Examination of the acft revealed no evidence of malfunction, although the left prop had less rotational damage than the right prop. Examination of acft records revealed the acft was inactive for about 9 yrs until it was returned to service less than a year before the accident. The acft accumulated about 17 hrs since it was returned to service. The plt stated to a witness before the accident that he had not done single engine operation in the acft. The acft was overloaded more than 200 lbs.

Aircraft

Registration
N98DS
Reported as
Beech A60
Category
Airplane
Serial number
P-227
Airframe hours
1,775
Engine
Lycoming TIO-541-E1C4, 380 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Executive/Corporate · Part 91
Operator
Rts Service Inc.
Registered owner
Rts Service Inc
Last inspection
Annual · November 29, 1988
Destination
ILG · Wilmington, DE
Airport
W10 · Manassas, runway 16L, 5,700 × 100 ft

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
60
Certificates
Airline transport, Flight engineer, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Expired
Seat
Left
Toxicology
Performed
Flight hours
25,130 total

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 12 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
52 °F, dew point 25 °F
Altimeter
30.00 inHg
Observed at
IAD

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.