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Aviation safety reports, made easier to study

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NTSB Report

October 15, 2022 · Piper PA-30 · N7746Y

Tucson, AZ

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
October 15, 2022
Injury Outcomes
No injuries (2 uninjured)
Location
Tucson, AZ
Aircraft
Piper PA-30 (1965)
Tail Number
N7746Y
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR23LA013

The pilot reported that, while on short final to land, the airplane yawed to the right. The pilot stated that full left rudder was needed to keep the airplane straight. The airplane subsequently touched down hard and departed the right side of the runway. All three landing gear collapsed and the left wing buckled, which resulted in substantial damage to the airplane. A postaccident examination of the airplane and engines was conducted, including test runs of both engines. No anomalies were noted that would have precluded normal operation or contributed to the loss of control during landing. Engine data from the accident flight were recovered, and no anomalies were noted in the data. Thus, the reason for the pilot’s loss of control during landing could not be determined based on the available evidence for this investigation.

NTSB Probable Cause

The pilot’s loss of control during landing for reasons that could not be determined based on the available evidence.

Full Narrative

On October 15, 2022, about 1200 mountain standard time, a Piper PA-30, N7746Y, was substantially damaged when it was involved in an accident near Ryan Field Airport (RYN), Tucson, Arizona. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that, on short final to land at RYN, the airplane yawed “hard right.” He stated that full left rudder was needed to keep the airplane straight. The pilot stated that he thought that he heard an engine surge. The airplane subsequently touched down hard and departed the right side of the runway. The pilot reported that all three landing gear collapsed and that the airplane then slid to a stop. The left wing buckled during the accident sequence. No wind gusts were reported during the approach or landing. A postaccident examination of the wreckage was conducted. Flight control continuity was verified to all flight controls, and all flight control surfaces moved freely and as commanded when the aileron, elevator, and rudder controls were manipulated in the cockpit. Engine control continuity was verified by manipulating the throttle, mixture, and propeller controls in the cockpit and observing the associated controls move at each engine. The engine control manipulation was normal except for the constant speed propeller control for the right engine. Excessive resistance was felt while manipulating the right engine propeller control, but the control lever was able to move throughout the full range of motion. The pilot recalled no unusual resistance in the engine controls before the accident. An engine run was accomplished on both engines. Before attempting the engine run on the right engine, the propeller control cable was disconnected at the propeller governor control arm. The control arm on the propeller controller operated normally and without restriction after the cable was disconnected. The resistance remained when the propeller control lever was manipulated while disconnected. The cable was then reconnected to the propeller control on the engine. The source of the resistance was not identified. Both engines started normally using onboard battery power and ran normally as engine power was increased to about 1,700 rpm. Engine power was not increased beyond 1,700 rpm due to vibration from damaged propeller blades. Each engine responded appropriately when individual magnetos were selected, and each propeller cycled normally when commanded. No anomalies were noted with either engine. A JPI engine data monitor was recovered from the airplane. The downloaded data correlated to the accident flight. No anomalies were noted in the recovered data.

Flight

Event TypeAccident
Event Time12:00 MST
Nearest AirportRyan Field Airport (0nm N)
Runway6L
Runway Length4900 ft
Runway Width75 ft
Flight Plan FiledIFR
Flight Plan ActivatedYes
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftPiper PA-30
Tail NumberN7746Y
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsLycoming · IO-320 B1A · Reciprocating · 160 | Lycoming · IO-320 B1A · Reciprocating · 160
Seats4

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 69 · Second Class · None
Crew 2None

Conditions

ConditionsVMC
LightDaylight
Wind330° @ 4 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point61 F
Altimeter29.91 inHg
Observation Time11:45
Weather SourceWFAC

Appendix: Source Data