WPR13CA162

NTSB accident investigation · Boeing B75N1 · Mesa, AZ · March 19, 2013

Accident · No injuriesData collectionFinal report
Date
March 19, 2013, 12:48 local (19:48 UTC)
Place
Mesa, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N47964Boeing B75N1
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 18, 2013
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
Case key
86502

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 directional control during the landing roll.

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedBoeing B75N1: 12 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotBoeing B75N1: 13 casesAll aircraft: 9,295 casesProbable cause

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 reported that as the tailwheel-equipped airplane decelerated after touchdown, it tracked left of the runway centerline. He applied corrective control inputs; however, the airplane continued to track left and departed the runway. The right wing contacted the ground and was substantially damaged during the runway excursion. The pilot reported that during the recently completed 100-hour annual inspection, the tailwheel suspension strut was modified with a different type of strut and that the new strut did not compress on landing until after right rudder was applied. However, review of the tailwheel strut design revealed that the strut only affects the vertical movement of the tailwheel, and has no lateral control effects. Postaccident examination of the airplane revealed no evidence of a mechanical failure or malfunction that would have precluded normal operation.

Factual narrative

The pilot reported that after touchdown, the tail wheel equipped airplane tracked left of runway center as it decelerated. He applied corrective actions; however, the airplane continued to track left and subsequently departed the runway edge. The right wing made contact with the ground during the runway excursion, and was substantially damaged. The pilot reported that the tail wheel strut did not compress on landing until after right rudder was applied. During the recently completed 100-hour annual inspection the tail wheel suspension strut was modified to incorporate a cylinder/oil type strut. A review of the tail wheel strut revealed that the strut only affects the vertical movement of the tail wheel, and has no lateral control effects. Postaccident examination of the airplane revealed no evidence of a mechanical failure or malfunction that would have precluded normal operation.

Aircraft

Registration
N47964
Reported as
Boeing B75N1
Category
Airplane
Serial number
75-7540
Airframe hours
3,683
Engine
Continental W670-6N, 220 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Arizona Wing Commemorative Air Force
Registered owner
American Airpower Heritage Flying Museum
Airworthiness certificate
Standard, Aerobatic
Last inspection
Annual · February 18, 2013 · 1 hours before
Departed
FFZ · Mesa, AZ
Destination
FFZ · Mesa, AZ
Airport
FFZ · Falcon Field Airport, runway 22L, 5,101 × 100 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
54
Injuries
None
Certificates
Commercial, Airline transport, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
September 26, 2012
Seat
Rear
Flight hours
11,688 total · 9 in this make and model · 5,599 as pilot in command · 33 in the last 90 days · 21 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 34 °F
Altimeter
29.87 inHg
Observed at
FFZ

Docket · 2

The files NTSB released with the investigation on May 7, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.7 MB in all.

Other investigations on N47964 · 3

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