Cessna R182 N9067C

Summary

On 23 August 1991 at about 17:10 local time, a Cessna R182 registered N9067C, operated by Lake Powell Air Service, was involved in an accident near Fredonia, Arizona, United States. 4 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

23 August 1991 at 17:10

Classification

Accident

Location

Fredonia, Arizona, United States

Coordinates

Not recorded

Aircraft

Cessna R182

Registration

N9067C

Category

Airplane

Engines

1

Operator

Lake Powell Air Service

Operating rule

Part 135: Air Taxi & Commuter

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Las Vegas → Marble Canyon

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

LAX91LA367

Nobody was injured.

FAILURE OF THE CARBURETOR MIXTURE CONTROL, RESULTING IN LOSS OF ENGINE POWER. A FACTOR RELATED TO THE ACCIDENT WAS: LACK OF COMPLIANCE WITH MARVEL-SCHEBLER SERVICE BULLETIN (SB) #A1-78.

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

Read the full NTSB narrative

THE PLT & 3 PSGRS WERE ON A X-COUNTRY SIGHTSEEING FLT, WHEN THE ENG BGN TO RUN ROUGH, THEN LOST PWR. SUBSEQUENTLY, THE ACFT COLLIDED WITH TRRN DRG A FORCED LANDING & HIT A TREE BFR IT CAME TO REST. WHEN CHECKED AFTER THE ACDNT, THE ENG WOULD RUN, BUT ONLY AT IDLE. THE ENG WAS EQUIPPED WITH A MARVEL-SCHEBLER MODEL HA-6 CARBURETOR (CARB). AS THE CARB WAS BEING REMOVED FM THE ENG FOR EXAMINATION, THE ROTARY MIXTURE CONTROL (PN 242-541) FELL OUT OF THE CARB HOUSING BECAUSE THE SHAFT RETAINING SCREW HAD BKN. IN SEP 78, MARVEL-SCHEBLER/TILLOTSON (ORIGINAL MANUFACTURER OF THE CARB) ISSUED SVC BULLETIN (SB) #A1-78, BUT IT HAD NOT BEEN ACCOMPLISHED. THE SB PROVIDES FOR INSTLN OF A SPRING RETAINER (PN 55-A239) TO COUNTERACT END-PLAY WEAR ON THE MIXTURE CONTROL ASSEMBLY & RETAINING SCREW DUE TO VIBRATION. THE SPRING RETAINER ALSO SERVES AS AN ADNL MEANS OF RETAINING THE ROTARY MIXTURE CONTROL, EVEN IF THE EXISTING SHAFT RETAINING SCREW IS WORN OR BKN. THE ENG HAD A TOTAL OPERG TIME OF 2568 HRS, 485 HRS SINCE OVERHAUL & 4.7 HRS SINCE THE PREVIOUS 100 HR INSPN.

Quoted verbatim from the NTSB record.