GAA15CA303

NTSB accident investigation · Mitsubishi MU 2B-25 · Arvin, CA · August 22, 2015

Accident · No injuriesData collectionFinal report
Date
August 22, 2015, 15:00 local (22:00 UTC)
Place
Arvin, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N553TMitsubishi MU 2B-25
Defining event
Taxi-into takeoff position: Ground collision
Weather
Visual (VMC) · Day
Status
Completed · report December 5, 2016
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
Case key
93677

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's failure to maintain clearance from trees while taxiing into position for takeoff on a narrow private airstrip, resulting in the left wing striking a tree.

Findings · 3

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.

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 pilot of the twin-engine, high-wing airplane, reported that while positioning the airplane for takeoff on a narrow private airstrip, the left wing impacted a tree, which resulted in substantial damage to the left wing. According to the pilot there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. According to Federal Aviation Administration (FAA) records, the pilot held a private pilot certificate with airplane single engine land rating, but did not hold a multi-engine rating. The Federal Aviation Administration has published the Airplane Flying Handbook FAA-H-8083-3A (2004). This handbook discusses multi-engine ground handling and states in part: Good habits learned with single-engine airplanes are directly applicable to multiengine airplanes for preflight and engine start. Upon placing the airplane in motion to taxi, the new multiengine pilot will notice several differences, however. The most obvious is the increased wingspan and the need for even greater vigilance while taxiing in close quarters. Ground handling may seem somewhat ponderous and the multiengine airplane will not be as nimble as the typical two- or four-place single-engine airplane. As always, use care not to ride the brakes by keeping engine power to a minimum. One ground handling advantage of the multiengine airplane over single engine airplanes is the differential power capability. Turning with an assist from differential power minimizes both the need for brakes during turns and the turning radius.

Factual narrative

The pilot of the twin-engine, high-wing airplane, reported that while positioning the airplane for takeoff on a narrow private airstrip, the left wing impacted a tree, which resulted in substantial damage to the left wing. According to the pilot there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. According to Federal Aviation Administration (FAA) records, the pilot held a private pilot certificate with airplane single engine land rating, but did not hold a multi-engine rating. The Federal Aviation Administration has published the Airplane Flying Handbook FAA-H-8083-3A (2004). This handbook discusses multi-engine ground handling and states in part: Good habits learned with single-engine airplanes are directly applicable to multiengine airplanes for preflight and engine start. Upon placing the airplane in motion to taxi, the new multiengine pilot will notice several differences, however. The most obvious is the increased wingspan and the need for even greater vigilance while taxiing in close quarters. Ground handling may seem somewhat ponderous and the multiengine airplane will not be as nimble as the typical two- or four-place single-engine airplane. As always, use care not to ride the brakes by keeping engine power to a minimum. One ground handling advantage of the multiengine airplane over single engine airplanes is the differential power capability. Turning with an assist from differential power minimizes both the need for brakes during turns and the turning radius.

Aircraft

Registration
N553T
Reported as
Mitsubishi MU 2B-25 (26A)
Category
Airplane
Serial number
290
Built
1974
Airframe hours
6,520
Engines
Garrett TPE331-6, 725 horsepower, turbo propGarrett TPE331-6, 725 horsepower, turbo prop
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Departed
7CA2 · Arvin, CA
Flight plan
Unknown
Airport
7CA2 · Paradise Lakes, runway 16, 2,700 × 60 ft, asphalt
Equipment
Onboard weather, Stall warning system, Auto-pilot, Electronic flight bag or handheld device, Handheld GPS

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
65
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Seat
Left
Restraint
3-point
Flight hours
4,000 total · 10 in this make and model · 1,990 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
95 °F, dew point 52 °F
Altimeter
29.82 inHg
Observed at
KBFL, 17 nm away

Docket · 3

The files NTSB released with the investigation on October 19, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 9.0 MB in all.