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NTSB Report

June 23, 1988 · Cessna 310 · N170R

Big Bear Lake, CA

Overview

Report Status

Preliminary report

Event Type

Accident

Date

June 23, 1988

Injury Outcomes

4 injuries (4 fatalities)

Location

Big Bear Lake, CA

Aircraft

Cessna 310

Tail Number

N170R

Injuries

Fatal

Aircraft Damage

Destroyed

NTSB Number

LAX88FA230

THE RECENTLY CERTIFICATED MULTIENGINE PILOT AND FRIENDS FLEW TO BIG BEAR AIRPORT FOR LUNCH. THE DENSITY ALTITUDE AT THE AIRPORT WAS ABOUT 8,000 FEET. THE PILOT ENTERED A SOUTH DOWNWIND LEG FOR RUNWAY 07 AT THE AIRPORT FOLLOWING A MOONEY 231. GROUND WITNESSES REPORTED THAT THE AIRPLANE WAS FLYING VERY SLOW WHEN IT WAS ON THE DOWNWIND LEG. WHEN THE AIRPLANE ENTERED THE BASE LEG. IT STALLED AND ENTERED INTO A SPIN. THE AIRPLANE CRASHED IN A NEAR VERTICAL DESCENT ATTITUDE. THE POST CRASH INVESTIGATION REVEALED THAT THE AIRPLANE'S LANDING GEARS AND FLAPS WERE EXTENDED; THE AMOUNT OF FLAP EXTENSION, HOWEVER, COULD NOT BE DETERMINED. THE INVESTIGATION DID NOT DISCLOSE ANY PREEXISTING MALFUNCTIONS OR FAILURES.

Full Narrative

THE RECENTLY CERTIFICATED MULTIENGINE PILOT AND FRIENDS FLEW TO BIG BEAR AIRPORT FOR LUNCH. THE DENSITY ALTITUDE AT THE AIRPORT WAS ABOUT 8,000 FEET. THE PILOT ENTERED A SOUTH DOWNWIND LEG FOR RUNWAY 07 AT THE AIRPORT FOLLOWING A MOONEY 231. GROUND WITNESSES REPORTED THAT THE AIRPLANE WAS FLYING VERY SLOW WHEN IT WAS ON THE DOWNWIND LEG. WHEN THE AIRPLANE ENTERED THE BASE LEG. IT STALLED AND ENTERED INTO A SPIN. THE AIRPLANE CRASHED IN A NEAR VERTICAL DESCENT ATTITUDE. THE POST CRASH INVESTIGATION REVEALED THAT THE AIRPLANE'S LANDING GEARS AND FLAPS WERE EXTENDED; THE AMOUNT OF FLAP EXTENSION, HOWEVER, COULD NOT BE DETERMINED. THE INVESTIGATION DID NOT DISCLOSE ANY PREEXISTING MALFUNCTIONS OR FAILURES.

Flight

Event TypeAccident

Event Time13:29 PDT

Nearest AirportBig Bear City Airport (2nm SW)

Runway7

Runway Length5850 ft

Runway Width75 ft

Flight Plan FiledNone

Aircraft FireNo

Aircraft ExplosionNo

Aircraft

AircraftCessna 310

Tail NumberN170R

Aircraft CategoryAir

DamageDestroyed

Operating RulePart 91

Engines2

Engine TypeReciprocating

Engine DetailsContinental · IO-470-D · Reciprocating · 260

Seats4

People & Injuries

Injury Summary4 injuries (4 fatalities)

Fatal4

Serious0

Minor0

Uninjured0

Total4

Crew 1Age 51 · Second Class

Conditions

ConditionsVMC

LightDaylight

Wind90° @ 15 kt, gusting 25 kt

Visibility15 sm

CeilingNone

Temperature / Dew Point0 C

Altimeter0

Observation Time20:30

Weather SourceWFAC

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June 23, 1988 · Cessna 310 · N170R

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