Cessna 172L N7965G

Summary

On 22 January 1993 at about 21:55 local time, a Cessna 172L registered N7965G, operated by Coastal Flyers, Inc., was involved in an accident near Ramona, California, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

22 January 1993 at 21:55

Classification

Accident

Location

Ramona, California, United States

Nearest airport

Ramona (L39)

Coordinates

33.0691, -116.8293

Aircraft

Cessna 172L

Registration

N7965G

Category

Airplane

Engines

1

Operator

Coastal Flyers, Inc.

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

San Diego → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

LAX93LA099

Nobody was injured.

A LOSS OF ENGINE POWER RELATED TO INADEQUATE AND IMPROPER MAINTENANCE PRACTICES CONCERNING THE CARBURETOR.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

BOTH PILOTS SAID THEY WERE PRACTICING POWER OFF FORCED LANDINGS. WHEN THE AIRCRAFT BEGAN TO UNDERSHOOT THE RUNWAY THE INSTRUCTOR INCREASED THE THROTTLE BUT THE ENGINE DID NOT RESPOND. THE AIRCRAFT COLLIDED WITH A BERM SHORT OF THE RUNWAY. THE ENGINE WAS EXAMINED WITH NO ABNORMALITIES NOTED. THE CARBURETOR, HOWEVER, HAD NUMEROUS DISCREPANCIES. THE CARBURETOR ITSELF WAS THE INCORRECT PART FOR THE ENGINE AND THE JETS WERE THE INCORRECT ONES FOR THE CARBURETOR. THE FLOAT WAS INCORRECTLY ADJUSTED AND THE NEEDLE VALVE WAS WORN. INCORRECT SCREWS WERE INSTALLED IN THE THROTTLE BUTTERFLY VALVE AND BOTH THE THROTTLE SHAFT AND ITS ASSOICATED BUSHINGS WERE WORN. THE BOWL TO THROTTLE BODY ATTACHMENT SCREWS WERE FOUND LOOSE. THE HISTORY OF THE CARBURETOR COULD NOT BE DETERMINED FROM AN EXAMINATION OF THE AIRCRAFT MAINTENANCE RECORDS.

Quoted verbatim from the NTSB record.