BFO92LA113

NTSB accident investigation · Stinson JR.SR. · Hanson, MA · July 26, 1992

Accident · No injuriesLimited investigationFinal report
Date
July 26, 1992, 12:00 local (16:00 UTC)
Place
Hanson, MA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N13462Stinson JR.SR.
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 1993
Report
Approved by Office Director
FAA report
19920726027329A
Case key
11829

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

The pilot inadequate compensation for wind which resulted in the loss of directional control.

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 control - on ground/waterTakeoff - roll/run
Weather condition - crosswindFactor
Compensation for wind conditions - inadequatePilot in commandCause
Directional control - not maintainedPilot in commandCause
Dragged wing,rotor,pod,float or tail/skidTakeoff - roll/run
Gear collapsedTakeoff - roll/run

Analysis

The pilot was taking off from an airstrip to position his floatplane at a seaplane base. The airplane was equipped with a portable six wheel ' dolly ' which attaches to the floats, and automatically detaches when the airplane becomes airborne during takeoff. According to the FAA, this was the pilot's first flight with this locally fabricated arrangement. The pilot stated that during takeoff the ' dolly ' malfunctioned, and the airplane turned approximately 70 degrees to the left reducing the speed of the airplane. The airplane settled back onto the runway sideways breaking off the' x brace resulting in the float structure collapsing under the airplane.' The right wing then struck the ground, breaking the spars. The pilot reported that there was 5 knots right crosswind. A witness reported that during takeoff roll the right wing lifted, followed by the separation of the right float dolly. The airplane then swerved left on the left float dolly and the left wing struck the ground. The witness said the airplane slid sideways, collapsing the floats.

Aircraft

Registration
N13462
Reported as
Stinson JR.SR.
Category
Airplane
Serial number
8715
Airframe hours
4,123
Engine
Lycoming R-680-13, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Positioning · Part 91
Operator
Annis, Peter
Registered owner
North River Aviation Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 20, 1992 · 1 hours before
Departed
MA02
Destination
MA01 · Halifax, MA
Airport
MA02 · Cranland, runway 18, 1,860 × 60 ft, gravel

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
51
Certificates
Airline transport, Flight instructor, Flight engineer
Airplane ratings
Single-engine sea, Multi-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
22,686 total · 35 in this make and model · 10,960 as pilot in command · 144 in the last 90 days · 30 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 9 knots
Visibility
7 statute miles
Lowest ceiling
22,000 ft broken
Temperature
77 °F, dew point 57 °F
Altimeter
29.00 inHg
Observed at
KNZW, 1 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.