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NTSB Report
April 1, 2023 · Cessna 172M · N1399U
Santa Ana, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 1, 2023
Injury Outcomes
No injuries (2 uninjured)
Location
Santa Ana, CA
Aircraft
Cessna 172M (1976)
Tail Number
N1399U
Operator
Oc 172 Group
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR23LA146
The flight instructor reported that while practicing crosswind landings with his student, the tower advised the pilot of wake turbulence from a commercial airliner on the parallel runway. They flew a steeper approach but noticed a moderate right quartering headwind on the windsock. At about 100 feet above ground level the airplane encountered wake turbulence and banked sharply to the right. Both pilots added full left aileron and applied backpressure to the yoke as the airplane contacted the terrain. The airplane sustained substantial damage to the right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
NTSB Probable Cause
The flight instructor’s failure to maintain clearance from a commercial airliner which resulted in an encounter with wake turbulence and subsequent loss of control resulting in impact with terrain.
Full Narrative
The flight instructor reported that while practicing crosswind landings with his student, the tower advised the pilot of wake turbulence from a commercial airliner on the parallel runway. They flew a steeper approach but noticed a moderate right quartering headwind on the windsock. At about 100 feet above ground level the airplane encountered wake turbulence and banked sharply to the right. Both pilots added full left aileron and applied backpressure to the yoke as the airplane contacted the terrain. The airplane sustained substantial damage to the right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time13:43 PDT
Nearest AirportJohn Wayne/Orange County Airpo (0nm)
Runway20L
Runway Length2886 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172M
Tail NumberN1399U
Aircraft CategoryAir
DamageSubstantial
OperatorOc 172 Group
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-E2D · Reciprocating
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 26 · First Class · None
Crew 2Age 21 · First Class · None
Conditions
ConditionsVMC
LightDaylight
Wind220° @ 9 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point66 F / 45 F
Altimeter30.12 inHg
Observation Time13:53
Weather SourceWFAC